Agriculture and Food System Challenges

00:27:48
https://www.youtube.com/watch?v=pUkkuz0i2DM

摘要

TLDRDas Video erörtert die Herausforderungen der nachhaltigen Entwicklung, die mit der Landwirtschaft verbunden sind. Der Redner betont, dass die Landwirtschaft einen erheblichen Einfluss auf die Umwelt hat und es notwendig ist, die Nahrungsmittelproduktion in einer sich verändernden Welt zu erhöhen. Er schlägt verschiedene Strategien vor, darunter die Reduzierung von Lebensmittelverschwendung und die Änderung von Ernährungsgewohnheiten, um die Ressourcen effizienter zu nutzen. Der Redner äußert sich kritisch gegenüber "Bio" und "local" Landwirtschaft, da sie oft weniger effizient sind und mehr Land beanspruchen könnten. Er favorisiert technologische Innovationen und bestmögliche landwirtschaftliche Praktiken, um die Produktivität zu steigern, und setzt sich gegen die Erweiterung landwirtschaftlicher Flächen ein, um die Umwelt zu schützen. Schließlich hebt er die Bedeutung von Veränderungen im Verbraucherverhalten hervor und diskutiert die Verarbeitung und Verteilung von Nahrungsmitteln als zentrale Punkte in der globalen Nahrungsmittelversorgungskette.

心得

  • 🌍 Landwirtschaft hat große Auswirkungen auf die Umwelt.
  • 📈 Steigerung der Produktivität ist notwendig.
  • ❗ Reduzierung von Lebensmittelverschwendung ist entscheidend.
  • 👨‍💻 Technologische Innovationen sind der Schlüssel.
  • 🌿 Bio-Lebensmittel sind nicht immer effizienter.
  • 🏡 Lokale Produktionen haben Vor- und Nachteile.
  • 💧 Wasserknappheit wird zu einem Problem.
  • 🍔 Änderung von Ernährungsgewohnheiten kann viel bewirken.
  • 📊 Intensivierung landwirtschaftlicher Praktiken ist notwendig.
  • 🚜 Landnutzung muss nachhaltig sein.

时间轴

  • 00:00:00 - 00:05:00

    Das Video beginnt mit einem Gespräch über die Bedeutung der Landwirtschaft und ihrer globalen Auswirkungen. Der Sprecher erklärt, dass die Aufgabe darin besteht, die Herausforderungen der nachhaltigen Entwicklung im Zusammenhang mit der Landwirtschaft zu lösen. Er erwähnt Systemkarten, um die Komplexität der landwirtschaftlichen Probleme zu veranschaulichen, und betont die Notwendigkeit, die Lebensmittelproduktion erheblich zu steigern, um der wachsenden Bevölkerung gerecht zu werden. Der Schwerpunkt liegt auf der ökologischen Verantwortung und den wirtschaftlichen Aspekten der Landwirtschaft.

  • 00:05:00 - 00:10:00

    Der Fokus liegt auf der ineffizienten Fleischproduktion und ihren Auswirkungen auf Umwelt und Ressourcen. Der Sprecher hebt die Bedeutung der Ernährungsauswahl hervor und erklärt, wie individuelle Entscheidungen die Umwelt beeinflussen können, insbesondere durch den hohen Ressourcenbedarf der Fleischproduktion. Es wird ein Diagramm gezeigt, das die Treibhausgasemissionen je nach Lebensmittelquelle vergleicht, wobei Fleisch, insbesondere Rindfleisch, negativ hervorsticht. Der Einfluss auf die Wasserknappheit und die Bedeutung einer bewussten Ernährung werden erörtert.

  • 00:10:00 - 00:15:00

    In diesem Abschnitt wird das Problem der Lebensmittelverschwendung und mögliche Lösungen behandelt. Der Sprecher weist darauf hin, dass ein erheblicher Teil der produzierten Lebensmittel verschwendet wird und dass wir durch effizienteres Management dieser Verluste den Druck auf die Erhöhung der Produktion mindern könnten. Es werden verschiedene Ansätze zur Reduzierung von Abfall und zur Einführung neuer Nahrungsmittelalternativen wie fleischähnliche Produkte und Insekten als Proteinquelle erörtert. Der Teil endet mit einer Diskussion über die Notwendigkeit von Verhaltensänderungen der Verbraucher.

  • 00:15:00 - 00:20:00

    Der Sprecher erklärt seine eigenen Prioritäten bei der Zuweisung von Ressourcen für landwirtschaftliche Herausforderungen. Er betont die Reduzierung von Abfall und die Förderung einer nachhaltigen Ernährung über technische Lösungen. Der Einsatz von Technologie zur Verbesserung der landwirtschaftlichen Produktivität und zur Anpassung an den Klimawandel wird als wesentlich angesehen. Der Punkt der regenerativen und verbesserten landwirtschaftlichen Praktiken, um die Bodengesundheit und die Effizienz zu steigern, wird unterstrichen, während gleichzeitig die Erschließung neuer Ackerflächen abgelehnt wird.

  • 00:20:00 - 00:27:48

    In diesem letzten Abschnitt wird die kontroverse Diskussion über den Nutzen von Bio- und lokalen Lebensmitteln behandelt. Der Sprecher argumentiert, dass lokale und biozertifizierte Produkte nicht so effizient sind wie intensiv bewirtschaftete Agrarsysteme und dass dies negative ökologische und wirtschaftliche Auswirkungen haben kann. Er weist darauf hin, dass die Effizienz und Praktiken der Produktion wichtiger sind als der Standort der Produktion. Der Sprecher schließt mit einem Appell an die Wichtigkeit der Landwirtschaft und ihrer zentralen Rolle bei der Bewältigung globaler Herausforderungen.

显示更多

思维导图

Mind Map

常见问题

  • Warum steht der Redner kritisch gegenüber "Bio" und "lokale" Landwirtschaft?

    Der Redner kritisiert, dass sowohl "Bio" als auch "lokale" Landwirtschaft oft ineffizienter sind und mehr Ressourcen benötigen.

  • Welche zwei Hauptstrategien schlägt der Redner vor, um Ressourcen zu schonen?

    Durch das Eliminieren von Abfall und die Veränderung von Ernährungsgewohnheiten können signifikante Ressourcen eingespart werden.

  • Warum lehnt der Redner die Erschließung neuer landwirtschaftlicher Flächen ab?

    Der Redner spricht sich gegen den Anbau auf neuen Flächen aus, um weitere Umweltbelastungen zu vermeiden.

  • Welche Themen behandelt der Redner im Kontext der Landwirtschaft?

    Die Diskussion umfasst Themen wie Verschwendung, alternative Nahrungsmittel und technologische Landwirtschaftspraktiken.

  • Was ist das Hauptziel der vorgeschlagenen Maßnahmen zur Intensivierung der Landwirtschaft?

    Um den Einfluss von Landwirtschaft auf die Umwelt zu minimieren und gleichzeitig die Produktivität zu steigern.

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    oh hey I'm glad you're here I've been
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    waiting for you I'm so excited hey what
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    do you think of the music business it's
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    my brother Wes you know I'll turn it
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    down in a minute
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    but I can't can't wait to talk with you
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    about the agricultural system assignment
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    and our allocations I'll get to that
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    just a minute
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    but I just want to convince you now that
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    there's a few things that are more
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    important than agriculture it is that
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    one of the biggest impacts we humans
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    have
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    okay I'll turn it down let's review the
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    assignment the task before you was to
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    solve the world sustainable development
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    challenges associated with agriculture
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    you were given control over all the
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    resources for the next couple years and
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    asked to divide them up amongst these
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    challenges and so you've seen my
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    allocations if I were the Czar and I'm
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    going to give you my explanations here
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    in a few minutes but first I want to go
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    over what I think are some of the main
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    issues I'm gonna do that by walking us
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    through some system Maps they're pretty
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    complicated but absolutely fascinating
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    so you might want to pause and look at
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    them a little bit longer than I have to
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    talk about them but first I want to
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    convince you that agriculture is
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    something we all do we're all directly
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    connected we put stuff in our mouths
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    three or four times a day we eat we're
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    responsible we can affect a lot of
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    change this graphic by the world
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    Resource Institute
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    I think paints the overall challenge we
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    have
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    we're basically hammer into biosphere
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    and I'll explain that a little bit more
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    and we've got to increase it food
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    consumption from calories produced by 60
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    maybe a hundred percent there are almost
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    a third of us twenty eight percent or so
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    are involved in agriculture so we're
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    going to be affecting a lot of people
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    it's really only ten percent or so the
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    total economy so the people aren't paid
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    that well but there's a lot of people
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    involved and the greenhouse gas
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    emissions are are enormous so that may
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    be a third or so depending on how the
  • 00:02:07
    accounting goes here's another image
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    we've seen before this is the planetary
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    boundaries this one is a little
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    different and it focuses just on the
  • 00:02:14
    role of agriculture and you can see here
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    we're blowing past a couple of the
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    boundaries that create the safe
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    operating space for human civilization
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    biodiversity loss certainly that's
  • 00:02:22
    because we've cleared so much habitat to
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    produce our our farm and agriculture
  • 00:02:27
    production nitrogen cycle that's all the
  • 00:02:29
    fixing of nitrogen for fertilizer
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    climate change just because we've
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    cleared so much forests as well as all
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    the methane and other
  • 00:02:36
    the gas is coming out of the soil and
  • 00:02:38
    animals so we're having a huge impact on
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    the biosphere by agriculture and we're
  • 00:02:44
    gonna have to maybe double the
  • 00:02:45
    productivity that's the challenge
  • 00:02:48
    here's another system map this one shows
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    where the money goes of every dollar
  • 00:02:52
    spent on food and you can see a small
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    fraction of it ten percent eleven point
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    six percent goes to farm and
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    agribusiness and actually maybe just a
  • 00:03:00
    few cents on the dollar goes to the
  • 00:03:02
    farmer food processing is another almost
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    twenty percent and then the services the
  • 00:03:08
    the production and shipping and
  • 00:03:11
    packaging and providing of it that's
  • 00:03:13
    that's the bulk of it so the point here
  • 00:03:15
    is that it's very difficult to
  • 00:03:16
    incentivize farmers with with with
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    economic incentives because there's very
  • 00:03:21
    little money that goes from the consumer
  • 00:03:24
    to the producer
  • 00:03:25
    here's another way to look at the food
  • 00:03:27
    system and this is sort of who owns it
  • 00:03:29
    now there are literally millions of
  • 00:03:31
    producers but only a handful of them
  • 00:03:34
    have lots of power most of it's widely
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    distributed but those that handful
  • 00:03:38
    controls most of the food supply so you
  • 00:03:41
    can see Cargill and Tyson's and others
  • 00:03:44
    control a lot of the food system here's
  • 00:03:47
    another way of looking at the power
  • 00:03:48
    slash ownership structure this is the
  • 00:03:50
    seed sources and you can see just a few
  • 00:03:52
    companies owned most of the seed source
  • 00:03:55
    Bayer and Monsanto up there on the left
  • 00:03:56
    hand quarter have since merged but this
  • 00:03:58
    is a tremendous amount of control over
  • 00:04:01
    primary production seed sources an
  • 00:04:04
    important implication is that just a few
  • 00:04:07
    companies have a lot of control and if
  • 00:04:09
    we target them if they change their
  • 00:04:11
    behavior then the whole market flips and
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    so there's a lot of tension and energy
  • 00:04:16
    on these companies and efforts to work
  • 00:04:18
    with them to become more sustainable
  • 00:04:21
    here's the foreshadow a debate we're
  • 00:04:23
    gonna have in a little bit and another
  • 00:04:24
    way of thinking about the food system is
  • 00:04:27
    who prepares our food or where we get it
  • 00:04:29
    and this graph shows that the food
  • 00:04:32
    system has been changing dramatically
  • 00:04:33
    over a couple decades is that most of us
  • 00:04:35
    now get our food away from home and of
  • 00:04:38
    course that's prior to the pandemic a
  • 00:04:41
    lot of people eat at restaurants or get
  • 00:04:44
    their food prepared by somebody else
  • 00:04:46
    that comes in a pizza box or a can and
  • 00:04:49
    we might bring
  • 00:04:50
    but the point here is that a lot of our
  • 00:04:52
    food is prepared design the ingredients
  • 00:04:56
    are decided by somebody else by a food
  • 00:04:58
    service professional somebody that we
  • 00:05:00
    can influence to change diets and
  • 00:05:02
    ingredients this is significant because
  • 00:05:04
    we know that individual consumers are
  • 00:05:07
    not very receptive to information and
  • 00:05:09
    knowledge and facts about how to how
  • 00:05:12
    they ought to eat but food service
  • 00:05:14
    professionals educated people with a lot
  • 00:05:16
    of ego invested in doing the right thing
  • 00:05:18
    they are receptive to that kind of
  • 00:05:20
    information it's hard to overemphasize
  • 00:05:23
    the importance of diet and dietary
  • 00:05:26
    choices as illustrated here by how
  • 00:05:29
    inefficient it is to eat meat just take
  • 00:05:31
    so much more land produces so much more
  • 00:05:33
    carbon require so much more water
  • 00:05:35
    destroy so much more biodiversity
  • 00:05:37
    because we're feeding the crops that we
  • 00:05:40
    grow on the land we're feeding them and
  • 00:05:42
    animals who in essence waste a lot of
  • 00:05:45
    that energy in terms of producing heat
  • 00:05:47
    in terms of moving around in terms of
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    belching out methane where we could have
  • 00:05:53
    eaten it directly we use about half of
  • 00:05:57
    our agricultural land is used and
  • 00:06:00
    devoted to producing meat let's just
  • 00:06:03
    look at corn this is a stinky diagram of
  • 00:06:07
    the flow of corn where it goes in the
  • 00:06:10
    United States you can see most of it it
  • 00:06:12
    comes from production comes from the
  • 00:06:13
    farm some of it comes from inventory a
  • 00:06:15
    little bit of that is exported or put
  • 00:06:18
    back into seed source and inventory but
  • 00:06:21
    most of it goes over there and in the
  • 00:06:23
    right hand corner goes to animal feed go
  • 00:06:26
    to cattle poultry and and and pigs right
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    another big hunk of it goes to our gas
  • 00:06:33
    tanks so if people are going hungry and
  • 00:06:35
    part of the reason is because we're
  • 00:06:37
    we're putting that food in our gas tanks
  • 00:06:40
    just down there in the lower right
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    that's that's all it is that we're
  • 00:06:43
    actually eating directly right and some
  • 00:06:45
    of it is alcohol moonshine other of it
  • 00:06:48
    is corn sugar and what-have-you but very
  • 00:06:50
    little bit of it is the cereal or actual
  • 00:06:53
    food itself corn on the cob
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    alright so most of it is used for other
  • 00:06:58
    purposes here's another fascinating
  • 00:07:01
    system diagram
  • 00:07:04
    and it's pretty complicated so you might
  • 00:07:05
    want to pause and stare at it but let me
  • 00:07:07
    give you the highlights here before you
  • 00:07:08
    do the the blue bars represent how much
  • 00:07:12
    greenhouse gases per kilogram of product
  • 00:07:15
    - the green is how much greenhouse gases
  • 00:07:17
    per hundred calories of product and the
  • 00:07:19
    red which I think is the most
  • 00:07:20
    significant point here is the greenhouse
  • 00:07:22
    gases per protein and I think that's
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    significant because most people argue
  • 00:07:27
    that they need protein from meat you can
  • 00:07:29
    see here how lamb and beef and dairy
  • 00:07:31
    generally are all pretty pretty horrible
  • 00:07:34
    so if you want to minimize your
  • 00:07:36
    greenhouse gases for protein and you
  • 00:07:38
    have to you've have kind of animal
  • 00:07:39
    protein then chicken or eggs and
  • 00:07:40
    certainly beans and lentils are best
  • 00:07:43
    here's a cool example that should really
  • 00:07:45
    give you some heartburn if you're
  • 00:07:47
    worried about greenhouse gas emissions
  • 00:07:48
    and like surf-and-turf shrimp are a
  • 00:07:52
    really destructive of mangrove so
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    there's a lot of biodiversity and
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    greenhouse gas emissions that are
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    released and of course beef is also very
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    destructive and if you think of all the
  • 00:08:02
    force that's has to be cut down they're
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    huge hugely impactful so if you have a
  • 00:08:06
    surf-and-turf just one meal of
  • 00:08:07
    surf-and-turf e it releases the
  • 00:08:09
    equivalent greenhouse gases - driving a
  • 00:08:12
    fuel-efficient car from Washington DC to
  • 00:08:14
    Los Angeles Wow
  • 00:08:17
    we also need to think about our dietary
  • 00:08:19
    choices impacts on water and here you
  • 00:08:23
    can see there's a wide range of varying
  • 00:08:25
    impacts up in the far right beef and
  • 00:08:27
    then lamb would be worse than it uses
  • 00:08:29
    huge amounts of water per serving but
  • 00:08:31
    even beans and nuts down there in the
  • 00:08:33
    bottom right they're not great so if
  • 00:08:35
    you're in a water stressed area these
  • 00:08:37
    crops may not be the best choice eggs
  • 00:08:40
    over on the left and poultry aisle
  • 00:08:43
    actually are better though again
  • 00:08:45
    dietary choices matter significantly
  • 00:08:48
    continuing the theme of agricultural
  • 00:08:51
    impact on water let's look at runoff
  • 00:08:54
    from fertilizer this green stuff is
  • 00:08:57
    algae that bloom because of excess
  • 00:09:01
    fertilizer runoff you remember from the
  • 00:09:04
    system assignment the previous system
  • 00:09:06
    assignment on water how much of the
  • 00:09:09
    fertilizer that gets applied actually
  • 00:09:11
    runs off that is it's not absorbed by
  • 00:09:15
    the plants it's
  • 00:09:17
    success and that produces deadzones
  • 00:09:20
    algae blooms that some become quite
  • 00:09:23
    toxic to all life-forms you also recall
  • 00:09:28
    that agriculture uses about 70% of the
  • 00:09:31
    freshwater supplies a lot of that is
  • 00:09:32
    pumped out of aquifers and it's not
  • 00:09:35
    being replaced and as a result there
  • 00:09:37
    around the world here in California
  • 00:09:38
    there's land subsidence that's 1977 when
  • 00:09:42
    this photograph was taken by dr. Pollan
  • 00:09:44
    and up at the top is 1925 that's how
  • 00:09:47
    much the land has subsided and this is
  • 00:09:49
    occurring around the world sometimes
  • 00:09:50
    dozens of meters a year and here is one
  • 00:09:54
    last image to drive home this
  • 00:09:56
    relationship between Ag and water and
  • 00:09:58
    here you can see the projected water
  • 00:10:00
    shortages just in the US and note that
  • 00:10:04
    they're basically under the the
  • 00:10:06
    breadbasket of the u.s. in Florida where
  • 00:10:09
    a lot of vegetables are grown in the
  • 00:10:11
    Midwest and in California so because of
  • 00:10:15
    climate change
  • 00:10:16
    and over pumping and aquifer depletion
  • 00:10:18
    and we're potentially in for a world of
  • 00:10:21
    hurt so we're gonna have to increase the
  • 00:10:25
    food supply but we're already hammering
  • 00:10:27
    the biosphere what are some solutions
  • 00:10:28
    well managing waste is one of them
  • 00:10:31
    here's a graph I think you're familiar
  • 00:10:33
    with it's a world resource institute
  • 00:10:35
    I'll pause on this a bit and because
  • 00:10:37
    it's pretty complicated I want to make
  • 00:10:38
    sure you understand it it maps where the
  • 00:10:41
    waste is coming from what's what's
  • 00:10:43
    pretty consistent is about 25 to 30
  • 00:10:45
    percent of the food that we use is
  • 00:10:49
    wasted that so we can save it and that
  • 00:10:51
    reduces the the need to increase
  • 00:10:54
    production and it varies very much by
  • 00:10:56
    country you can see in the developed
  • 00:10:58
    world over there on the left is North
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    America most of the waste is consumption
  • 00:11:03
    is that we just don't eat it we throw it
  • 00:11:05
    away it rots in our refrigerator whereas
  • 00:11:07
    over on the right side in the developing
  • 00:11:09
    world a lot of the waste is caused by
  • 00:11:11
    poor infrastructure there's lack of
  • 00:11:13
    refrigeration or lack of transport the
  • 00:11:15
    crops rot in the field or they rot on
  • 00:11:18
    their way to market or they're not
  • 00:11:20
    packaged and stored in a way or with
  • 00:11:22
    preservatives that help them be
  • 00:11:24
    maintained freshness so we can we can
  • 00:11:27
    manage waste
  • 00:11:29
    dramatically but it's going to differ by
  • 00:11:33
    region how will we do it well what else
  • 00:11:36
    can we do we can create alternative
  • 00:11:39
    kinds of food we can grow meat and
  • 00:11:41
    test-tubes I'm not a big fan of this
  • 00:11:44
    because of the enormous amounts of
  • 00:11:47
    energy and water it takes to do that
  • 00:11:50
    there are impossible burgers beyond beef
  • 00:11:52
    I think that's a much more viable
  • 00:11:54
    solution that's basically a vegetable
  • 00:11:56
    substitute for for meat not not growing
  • 00:11:59
    it in the lab or we could eat insects
  • 00:12:02
    insects grow really quickly very
  • 00:12:04
    efficiently it's a great way to get
  • 00:12:06
    protein although some of you probably
  • 00:12:09
    had it most of you are probably not yet
  • 00:12:12
    keen on shifting to this as your protein
  • 00:12:15
    source okay it's now time for me to
  • 00:12:19
    explain my evaluations and I've already
  • 00:12:22
    revealed my hand quite a bit in my
  • 00:12:26
    explanation of the system Maps earlier
  • 00:12:27
    but I want to begin with talking about
  • 00:12:30
    the two that I have labeled in blue
  • 00:12:32
    they're different than the other other
  • 00:12:37
    entries right have you figured that out
  • 00:12:39
    can you can you think why they're
  • 00:12:41
    different it's because they're both
  • 00:12:44
    about demand they're both about changing
  • 00:12:47
    the consumer they're about changing our
  • 00:12:49
    behavior the Oh everything else is about
  • 00:12:52
    changing supply its some sort of
  • 00:12:55
    technical technological innovation
  • 00:12:56
    that's going to solve the problem with
  • 00:12:58
    with a change in supply whereas the
  • 00:13:01
    heavier lifts and some of them are
  • 00:13:03
    consequential ones who are dealing with
  • 00:13:05
    generating waste and changing our diet
  • 00:13:08
    let's start with eliminating waste
  • 00:13:10
    there's so many things we can do one
  • 00:13:12
    cool thing that Virginia Tech did pretty
  • 00:13:14
    easy is you eliminate trace you know if
  • 00:13:16
    you had a tray you're a buffet
  • 00:13:17
    it's that all-you-can-eat you fill that
  • 00:13:19
    thing up and you don't need a little bit
  • 00:13:21
    of it you throw the rest away but if you
  • 00:13:22
    don't have trays you have to go back for
  • 00:13:24
    more and you only get what you can eat
  • 00:13:26
    and by eliminating trays Virginia Tech
  • 00:13:28
    many dumpsters of food waste something
  • 00:13:32
    we sometimes don't think about and in
  • 00:13:34
    part because sustainability
  • 00:13:36
    professionals tend to be opposed to
  • 00:13:37
    plastic and preservatives but they save
  • 00:13:41
    a lot of food and keep it from rotting
  • 00:13:43
    another thing we can do is we can
  • 00:13:44
    educate consumers about what I use by
  • 00:13:47
    date means when what what actually does
  • 00:13:49
    it mean to win a fit when the use by
  • 00:13:51
    date is passed so often it's not that
  • 00:13:53
    the food is bad it's just that it no
  • 00:13:55
    longer tastes at its prime so there are
  • 00:13:58
    lots of things we can do to reduced
  • 00:14:00
    waste in the developed world it's going
  • 00:14:02
    to take a little bit of investment and
  • 00:14:03
    wrapping packaging preservatives as well
  • 00:14:07
    as education but in the in the
  • 00:14:09
    developing world it's going to take some
  • 00:14:11
    serious investment of infrastructure
  • 00:14:12
    refrigeration sorting sheds better ways
  • 00:14:14
    to keep the food from rotting in the
  • 00:14:17
    field another thing we can do is change
  • 00:14:20
    diets it's just about anything that
  • 00:14:23
    moves beef and lamb off the center of
  • 00:14:26
    the plate is a big deal people don't
  • 00:14:29
    like to change their diets so it's gonna
  • 00:14:31
    be a long hard push here but it's slowly
  • 00:14:35
    happening there's some very great
  • 00:14:37
    initiatives and it's meatless Monday and
  • 00:14:40
    other kinds of things work but even just
  • 00:14:42
    selecting the type of meat that you eat
  • 00:14:44
    so emphasizing maybe poultry over beef
  • 00:14:47
    and make a huge difference right you're
  • 00:14:49
    not eating not eating shrimp so what are
  • 00:14:52
    the what are the choices we have are
  • 00:14:54
    things like plant forward menus and in
  • 00:14:57
    ingredients there's some terrific work
  • 00:14:59
    being done by an organization called
  • 00:15:01
    menus have changed and another one
  • 00:15:03
    changing tastes you should google them
  • 00:15:05
    and what they're doing is recruiting
  • 00:15:06
    high-profile chefs to help create buzz
  • 00:15:09
    and menus and recipes an ingredient list
  • 00:15:13
    that basically move the meat off the
  • 00:15:14
    center and and on to the side more like
  • 00:15:17
    a condiment and and making dishes
  • 00:15:19
    emphasize protein and flavor and serving
  • 00:15:23
    sizes that are much more sustainable so
  • 00:15:26
    there's a lot we can do to affect diet
  • 00:15:27
    and and it's going to take some change
  • 00:15:30
    to make that happen and as a result I've
  • 00:15:33
    put some money in and even though it is
  • 00:15:34
    behavior change one of the things I
  • 00:15:37
    suggest we not do is cultivate more Lyon
  • 00:15:40
    we could cut down the few force that are
  • 00:15:43
    remaining and and plow it over and
  • 00:15:45
    release all the carbon out of the soil
  • 00:15:46
    and the forest and in the atmosphere and
  • 00:15:49
    kill the biodiversity and clump out the
  • 00:15:52
    water but is just unacceptable
  • 00:15:54
    consequences to me
  • 00:15:55
    so cultivate
  • 00:15:56
    is off the table certainly one of the
  • 00:15:58
    things I did put a lot of money into in
  • 00:16:00
    fact the most money is intensification
  • 00:16:02
    that is to figure out how to make the
  • 00:16:05
    best practices that are on some parts of
  • 00:16:07
    the land now spread over over the globe
  • 00:16:11
    because if we have the best practices
  • 00:16:14
    that is the the land producing the most
  • 00:16:17
    beef or corn or cotton or rice whatever
  • 00:16:21
    it is we're producing per hectare
  • 00:16:23
    we can actually meet our food needs now
  • 00:16:25
    that is if we can spread the best
  • 00:16:27
    management practices and that probably
  • 00:16:29
    means really smart agriculture means
  • 00:16:31
    monitoring and and digit digital
  • 00:16:34
    techniques that managed irrigation
  • 00:16:38
    managed fertilizer manage weeding and
  • 00:16:41
    plowing and all kinds of other things so
  • 00:16:43
    there's a lot of technology we can use
  • 00:16:44
    to increase increase the agricultural
  • 00:16:46
    productivity it also means a lot of
  • 00:16:48
    genetically modified organisms
  • 00:16:50
    everything from changing soybeans so
  • 00:16:52
    that they can be planted without tilling
  • 00:16:54
    which saves a lot of soil loss in carbon
  • 00:16:57
    loss to increasing the capacity of the
  • 00:17:00
    of the plant to absorb carbon dioxide to
  • 00:17:03
    input some of the so about c-4 processes
  • 00:17:07
    into c3 plants the other thing we need
  • 00:17:10
    to do is regenerative restorative
  • 00:17:12
    agriculture that improves the the
  • 00:17:14
    fertilization improves the the salinity
  • 00:17:18
    improves the degraded soil it's a lot of
  • 00:17:20
    land out there that now is abandoned
  • 00:17:22
    because it's been poorly used or
  • 00:17:23
    polluted and we need to figure out how
  • 00:17:25
    to bring that back into production and
  • 00:17:27
    so there's money to be spent here up and
  • 00:17:29
    there's huge gains in terms of food
  • 00:17:32
    productivity as well as save
  • 00:17:34
    biodiversity and other ecosystem
  • 00:17:35
    services as you can see I also put a
  • 00:17:38
    fair bit of money into climate
  • 00:17:40
    vulnerability I'm increasingly worried
  • 00:17:41
    about this as you know how to
  • 00:17:43
    temperatures will decrease plant
  • 00:17:44
    productivity the increasing water
  • 00:17:47
    scarcity from climate change is going to
  • 00:17:48
    disrupt crops the soil carbon loss and
  • 00:17:51
    microbe loss it's going to decrease the
  • 00:17:54
    fertility it's going to be new pests
  • 00:17:56
    migrating in that are gonna destroy
  • 00:17:58
    crops more variable Frost's and droughts
  • 00:18:01
    perhaps the need to relocate farms
  • 00:18:03
    further north at least in the northern
  • 00:18:05
    hemisphere
  • 00:18:06
    both the climate vulnerability and
  • 00:18:10
    intensification are a very high-tech
  • 00:18:13
    option so I'm I'm pushing a lot of
  • 00:18:16
    Technology here I think we're gonna need
  • 00:18:18
    that in order to feed the world and
  • 00:18:19
    adapt to climate change
  • 00:18:21
    see I did put a little money into
  • 00:18:24
    biomaterials and bioenergy well actually
  • 00:18:26
    not bioenergy I don't think it's a good
  • 00:18:29
    idea to put corn in in ethanol or
  • 00:18:33
    switchgrass or
  • 00:18:35
    forests into biofuels it's just the cost
  • 00:18:38
    is too high in terms of water and
  • 00:18:39
    biodiversity but biomaterials over the
  • 00:18:42
    last couple years I've begun to think
  • 00:18:45
    that that we need we need to put more
  • 00:18:46
    money into that to replace plastics to
  • 00:18:50
    replace or at least petroleum-based
  • 00:18:52
    plastics to replace steel to replace
  • 00:18:56
    maybe cement or basically there these
  • 00:18:59
    are very high carbon intensive products
  • 00:19:02
    plastics steel cement and bio-based
  • 00:19:05
    materials it would be a good good
  • 00:19:07
    substitute for that and so we need to me
  • 00:19:09
    to put money and research to figure out
  • 00:19:11
    how to do this so that's also a big part
  • 00:19:13
    of the circular economy as tough is to
  • 00:19:15
    replace the non-renewable inputs into
  • 00:19:18
    ending the economy now with the
  • 00:19:19
    renewable bio materials well let's take
  • 00:19:26
    the non-controversial one a new food I
  • 00:19:29
    am I'm all in favor of new food I think
  • 00:19:31
    there'll be new foods and impossible
  • 00:19:33
    burgers and beyond be four great
  • 00:19:35
    examples I think there's money to be
  • 00:19:37
    made there and say I think Silicon
  • 00:19:39
    Valley is all over it so I think the
  • 00:19:41
    investors will do it or there's not a
  • 00:19:42
    really justification to put in public
  • 00:19:44
    dollars and into new foods okay let me
  • 00:19:48
    get into the controversial ones please
  • 00:19:50
    don't hate me for it but I'm coming out
  • 00:19:52
    against organic and local foods there's
  • 00:19:56
    a lot of Mythology and misunderstanding
  • 00:19:58
    and zealotry people believe it's just
  • 00:20:01
    good because it's good bear with me
  • 00:20:05
    I'm going to explain myself and give you
  • 00:20:08
    a little confession there's some good
  • 00:20:11
    literature it's in the in the references
  • 00:20:14
    and so dig into that the problem biggest
  • 00:20:18
    problem with organic and local is that
  • 00:20:20
    it's not as efficient as intensified
  • 00:20:22
    agriculture and as a result we have to
  • 00:20:25
    cultivate more land that means we have
  • 00:20:26
    to cut down more biodiversity it means I
  • 00:20:29
    mean cut down more force that means
  • 00:20:30
    destroy more biodiversity and release
  • 00:20:32
    more carbon and and use more water and
  • 00:20:37
    that cost is just unacceptable to me
  • 00:20:40
    there a lot of discussion about organic
  • 00:20:44
    being healthier there's not really a lot
  • 00:20:46
    of support in the literature for that it
  • 00:20:49
    may taste better I'm not going to refute
  • 00:20:51
    that I don't think that's a relevant
  • 00:20:53
    issue I mean aesthetics are fine but
  • 00:20:55
    that's not a reason for a policy
  • 00:20:57
    decision here the relationship between
  • 00:21:00
    organic food and human health is very
  • 00:21:04
    tenuous
  • 00:21:04
    and probably doesn't exist so let's get
  • 00:21:09
    into localism ok a lot of people are
  • 00:21:13
    localist they believe local is good
  • 00:21:15
    because it's local but that's a
  • 00:21:18
    tautology it's like saying nature is
  • 00:21:20
    good because it's natural we need to go
  • 00:21:23
    beyond that tautology and actually look
  • 00:21:26
    at the specific impact so let's look at
  • 00:21:29
    environmental economic and equity
  • 00:21:31
    impacts of local food ok here is my
  • 00:21:35
    confession I spent about 15 years of my
  • 00:21:38
    research career researching localism I
  • 00:21:41
    was a believer field to fork wood to
  • 00:21:43
    Goods all these local natural resource
  • 00:21:45
    based economies unfortunately the
  • 00:21:48
    research didn't bear out the positive
  • 00:21:50
    impacts it turns out it's not so much
  • 00:21:53
    that whether it's local or not that
  • 00:21:55
    matters but it matters what matters is
  • 00:21:56
    how it's done and who does it if there's
  • 00:21:59
    lots of example local examples that were
  • 00:22:01
    lots of pesticide application way too
  • 00:22:04
    much irrigation and soil the road
  • 00:22:07
    with biodiversity loss with where the
  • 00:22:10
    farmer is not protecting the environment
  • 00:22:12
    right and the the food miles think the
  • 00:22:15
    idea of local somehow having a smaller
  • 00:22:17
    carbon footprint yet that's that's a
  • 00:22:19
    faulty logic it turns out that the the
  • 00:22:22
    carbon footprint associated with
  • 00:22:23
    transportation is actually very small
  • 00:22:25
    but most of the carbon footprint is
  • 00:22:27
    associated with growing the crop so what
  • 00:22:29
    really matters is being located where
  • 00:22:31
    the Sun is best the water's best the
  • 00:22:34
    pests are best the the nutritional value
  • 00:22:36
    of the soil is best whatever it takes to
  • 00:22:38
    grow that crop most efficiently that
  • 00:22:41
    will reduce the carbon footprint the
  • 00:22:43
    carbon footprint associated with
  • 00:22:45
    transportation could actually be worse
  • 00:22:47
    for localism because the truck going
  • 00:22:50
    back and forth from the farm to the
  • 00:22:52
    farmers market is pretty inefficient
  • 00:22:53
    people have to drive to the farmers
  • 00:22:55
    market and they only buy a few things
  • 00:22:57
    there then they have to go shopping
  • 00:22:59
    elsewhere so there actually might be
  • 00:23:00
    more carbon emissions than a very
  • 00:23:02
    efficient transport system so from an
  • 00:23:05
    environmental perspective it's not food
  • 00:23:07
    miles there may be more pesticide
  • 00:23:09
    application there may be more land use
  • 00:23:11
    maybe erosion there may be water use
  • 00:23:12
    it's possible that local is bad on many
  • 00:23:15
    fronts for regarding the environment the
  • 00:23:19
    second e economics it's got to be better
  • 00:23:23
    for localism well again probably not
  • 00:23:27
    there there will be more dollars
  • 00:23:29
    circulated in the local economy but to
  • 00:23:32
    remember the the figure we looked at
  • 00:23:34
    earlier only a small percentage of the
  • 00:23:36
    money we spend on food actually goes to
  • 00:23:38
    the farmer and in a local economy
  • 00:23:41
    there'd be a little bit higher
  • 00:23:42
    percentage because the food would
  • 00:23:43
    actually be a little bit more expensive
  • 00:23:44
    but in essence we're taking money away
  • 00:23:46
    from other people that that money is
  • 00:23:48
    going to be spent somewhere most of it's
  • 00:23:50
    going to be spent and on packaging or
  • 00:23:53
    production or marketing services and and
  • 00:23:57
    those people if you have a local
  • 00:24:00
    agriculture those people actually be
  • 00:24:02
    worse off won't they so you're actually
  • 00:24:03
    taking money from them right so there's
  • 00:24:05
    it's it's not at all clear that from an
  • 00:24:08
    economic perspective it's it's positive
  • 00:24:10
    let's look at it from the perspective of
  • 00:24:13
    comparative advantage in a local region
  • 00:24:16
    all the neighbors have like lots of
  • 00:24:18
    zucchini at the same time or lots of
  • 00:24:20
    strawberries or lots of apples or
  • 00:24:21
    whatever it is whatever a local area
  • 00:24:23
    produces they all come in at the same
  • 00:24:25
    time and as a result of having such an
  • 00:24:27
    abundance of supply there is a very
  • 00:24:29
    diminished price I mean you can't give
  • 00:24:30
    zucchinis away sometime right and so
  • 00:24:33
    that if if you could take that zucchini
  • 00:24:35
    and and transport it a thousand miles to
  • 00:24:38
    a place that can't grow zucchinis then
  • 00:24:40
    you can make some money right and both
  • 00:24:42
    communities are better off the community
  • 00:24:43
    that doesn't have the zucchini now has
  • 00:24:45
    it and you got community that grew it
  • 00:24:47
    now has money that they can use for
  • 00:24:49
    something else okay Bruce what about the
  • 00:24:51
    third e equity or community the third
  • 00:24:55
    dimension of sustainable development the
  • 00:24:57
    advantages there well again it's hit or
  • 00:25:00
    miss certainly there are advantages of
  • 00:25:02
    knowing your farmer knowing where your
  • 00:25:04
    food comes from but not always right you
  • 00:25:08
    have to admit that there's a fair bit of
  • 00:25:09
    oppression racism sexism poor wages poor
  • 00:25:13
    labor practices little Economic
  • 00:25:15
    Opportunity in rural small local
  • 00:25:20
    businesses whereas larger multinational
  • 00:25:25
    companies are brand conscious they've
  • 00:25:28
    got human resource programs that respect
  • 00:25:31
    equity and diversity and labor practices
  • 00:25:33
    they've got professional development
  • 00:25:35
    opportunities travel opportunities
  • 00:25:37
    education programs all kinds of things
  • 00:25:39
    that would make the work environment
  • 00:25:40
    more productive more effective and big
  • 00:25:44
    companies have large endowments and
  • 00:25:47
    foundations that give money back to the
  • 00:25:49
    community so there's other you know that
  • 00:25:51
    can be better but it can be worse so
  • 00:25:53
    again it's with same with environment
  • 00:25:55
    same with with with the economy and the
  • 00:25:58
    same with equity it's not so much
  • 00:26:00
    whether it's local or not that matters
  • 00:26:02
    what matters are the practices what
  • 00:26:04
    matters is how well the people are doing
  • 00:26:07
    it and that can be done globally or
  • 00:26:09
    locally so locally by itself is not
  • 00:26:11
    necessarily better
  • 00:26:13
    it may taste better but that's an
  • 00:26:15
    aesthetic and I'm not willing to to make
  • 00:26:18
    a decision based upon that right and and
  • 00:26:21
    because it's unfortunately less
  • 00:26:23
    productive in terms of producing the
  • 00:26:25
    food that we need and we have to maybe
  • 00:26:28
    double the amount of food I think local
  • 00:26:30
    is not a solution to the challenges we
  • 00:26:32
    face that's why I didn't put any dollars
  • 00:26:35
    in it sorry
  • 00:26:36
    darn I'll let brother West's music fade
  • 00:26:40
    out here I have to turn it back on for
  • 00:26:42
    you
  • 00:26:43
    I hope we're still friends after this
  • 00:26:45
    it's a difficult subject certainly and I
  • 00:26:50
    just I want to impress upon you how
  • 00:26:52
    important agriculture is I mean there
  • 00:26:54
    are a few things that have bigger
  • 00:26:56
    impacts on the environment than
  • 00:26:58
    agriculture and we've got to somehow
  • 00:27:01
    double the amount of food may be
  • 00:27:03
    produced in order to feed a more
  • 00:27:05
    populous and prosperous world population
  • 00:27:09
    it's it's an amazing challenge and I'm
  • 00:27:12
    glad that you're up to the task so enjoy
  • 00:27:18
    the rest of the program
  • 00:27:21
    [Music]
标签
  • Nachhaltigkeit
  • Landwirtschaft
  • Ernährungsgewohnheiten
  • Lebensmittelverschwendung
  • technologische Innovation
  • klimatische Herausforderungen
  • Bio-Lebensmittel
  • lokale Produzenten
  • ressourcenschonend
  • Umweltschutz