KIM NICHOLAS
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a high school student's questions on climate change and food

3/23/2015

 
I was recently contacted by a Swedish high school student writing a senior thesis with some questions about climate change and food production. Here are their questions, and my answers. 

1. What effect does global warming have on food production? What kind of impact does this effect have on rich and poor countries?

In general for most major food crops, increasing temperatures decrease yields. The more warming, the greater yield loss. About 2/3 of food that people eat worldwide (measured in calorie production) comes from 4 crops: wheat, maize, rice, and soybean. These crops are sensitive to temperature, as you can see below. Here rice is not so much affected (the green line does not decline very much with warming), and soybean can also tolerate some higher temperatures (the blue line does not drop much until more than 2° of warming occurs), but wheat (purple line) and maize (called corn in the US; red and orange lines) start to experience big yield losses that increase with more warming. 
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Figure credit: Henson, 2011, "Warming World: Impacts by Degree," p. 28. Based on the Solomon et al. 2011 report to the US National Research Council, "Climate stabilization targets: Emissions, concentrations, and impacts over decades to millennia."

The effect of warming on crops depends on physics (how much does the atmosphere warm) and biology (how do crops respond to warming), as well as social systems (how well can people cope with change and what resources do they have to do so- this can include traditional knowledge as well as technology like irrigation). Even rich countries can be affected. For example, I have just published a paper with colleagues that shows that wheat yields in Australia are likely to decline 50-70% with high warming from continued heat-trapping pollutants (greenhouse gases like carbon dioxide).   
2. What actions/solutions are there to make the impact as little as possible? What have the countries done so far to prevent this?

There are many ways to reduce climate change, for individuals, organizations like schools, communities, businesses, and countries. Individuals can consider their carbon footprint. Some of the biggest ways to reduce this are to eat less meat or adopt a vegetarian diet, minimize travel especially air travel, and choose to have fewer children. Organizations can assess their resource use and find ways to focus on delivering the desired services (like education) with less resource inputs. 

Fundamentally, to reduce the risks of climate change, the world needs to move towards a goal of zero carbon emissions. This means we need to stop burning fossil fuels like coal, oil and gas, which contain a lot of carbon that turns into the heat-trapping pollutant carbon dioxide in the atmosphere. How we use land to grow food is also a major contributor.  

Your question about what countries are doing is very timely. The international process around climate change is coordinated by the United Nations Framework Convention on Climate Change. There will be a meeting in Paris (called COP21) starting in November where new treaties are negotiated. Many countries have made good progress. One example that got recent attention was the deal between the US and China, which you can read about here. 

However, much more work needs to be done to meet the targets for limiting climate change to 2°C above pre-industrial levels. Right now, the countries are making statements about what their commitments will be to reduce emissions. 
You can read more here for an overview, and here for Europe. 

3. Are there countries that can have a positive impact due to global warming?

Yes, some areas and some sectors are likely to benefit from climate change. For example, it may be possible to grow more crops in Canada and Russia and other northern areas if they have longer growing seasons and warmer temperatures. Melting of Arctic ice could open up new shipping routes. 

However, the overall impacts of climate change are negative, and they outweigh the benefits. Many studies have shown that it will be cheaper to avoid climate change, than to spend money to adapt to change, especially if we continue high emissions and therefore experience a lot of warming, which will produce a lot of changes in the environment that are expensive and difficult or in some cases impossible to adapt to. 


4. Are there any plans for the future? How will it look in the future when certain crops are lost or run out?

The way I think about dealing with climate change is to “manage what we can’t avoid, and avoid what we can’t manage.” There are many options to deal with climate change in agriculture, like changing planting dates of crops, switching varieties, or using more irrigation. However, the more warming we experience, the more difficult it is to adapt, as the infographic from the Cambridge Institute for Sustainability Leadership briefing on the latest scientific studies from the shows. This is why it’s so critical to limit the amount of climate change we experience by reducing greenhouse gas emissions, so that the impacts are manageable. 
Picture
Credit: Cambridge Institute for Sustainability Leadership, IPCC Climate Science Business Briefings, "Agriculture" infographic, 2014. There are 13 excellent visual summaries of the latest climate science here: http://www.cisl.cam.ac.uk/business-action/low-carbon-transformation/ipcc-briefings/agriculture

Advice to Myself Ten Years Ago

3/15/2015

 

LUMES Commencement Speech
4 June 2013

Picture
I invite you to join me in a small thought experiment. Think back to where you were ten years ago. Think of what you were doing, where you were living, who you were spending your time with, what your biggest worries and your top priorities were.

Now think about what you THOUGHT you’d be doing in ten years’ time.

How does it match up with where you actually are today? How many people are where they thought they’d be ten years ago? Most of us feel like, yeah, we’ve changed a lot in the last ten years, but NOW we’ve got it all figured out (or we should have, and everyone around us seems to have figured it out), and it’s going to be clear sailing from here.

I can tell you that’s not how it works, and it's not how it’s supposed to work. So I would expect to keep changing, and don’t fight it or try to control it.

For me ten years ago, I was sitting where you now sit, listening to some boring speaker standing between me and my master’s diploma and champagne and pictures with my family and friends. Everyone is different, and I’m not sure what you all would most benefit from hearing today, but I’ve been thinking about what I’ve learned in the last ten years that I wish I’d known then. Probably it won’t make any sense out of context and without personal experience, but I’ve tried anyway to assemble some advice I wish I had taken to heart earlier, so in a way this talk is directed to a younger version of myself.

First. Stop worrying about the future. I mean, don’t stop worrying about the future of all the people with whom we share this planet, and all the special places we call home. Please keep worrying about them. We desperately need your passion and creativity to take better care of them. But please stop worrying about your own future.

I can promise you two things. Your future will not turn out anything like you envision now. And it will be OK. That’s actually kind of the point. How boring would it be if you could perfectly predict your whole life from here? It would mean that you weren’t going to learn anything, or grow, or change in any way for the rest of your life. Howard Thurman said, “Don’t ask what the world needs. Ask what makes you come alive, and go do that, because what the world needs is people who have come alive.” I think that’s a good guide. 

Second. Don't be too anxious to get all the questions answered. Try to embrace the uncertainty of your life right now, the low paychecks and the couchsurfing. Realize that there is tremendous freedom and excitement and adventure and opportunities that come along with them. Don't be too anxious to own a couch. I promise, you have your whole life to own couches, and there’s really nothing that great about them. In fact, I still haven’t bought a couch!

At this point, you’re supposed to be trying things that totally don’t work out: moving to cities you end up hating, taking jobs in inefficient organizations with difficult bosses, being in relationships with people who are all wrong for you. These are essential experiences of your 20s. You are having them so you learn about what doesn’t work for you, so you can create what does.

I wish I had known that it’s normal to be bad at something for a really long time before you get decent at it, and it takes even longer to get really good. The worst part is when you know enough to know you’re bad, and it feels like you’ll never get good. The way to get good is not to quit.

But on that point: don’t be complacent with your personal or professional life. Learn to listen to your gut feeling. Ugh, feelings! They’re mushy and not logical and can’t be graphed or put in a matrix, and sometimes when you make lists of pros and cons, one side is way longer than the other, but you still don’t want to choose the side with the longer list. I felt this way when I was offered a job that looked fantastic on paper and seemed like the perfect fit. Everyone congratulated me and was shocked when I didn’t take it, especially when I couldn’t really explain it other than to say I had a feeling like a lead weight in my stomach when I imagined moving there. It turned out that was the right decision for me, and when I came to visit Lund and had a feeling of excitement and lightness when I thought about coming here, that meant it was the right decision for me.

Finally, I want to share some of the things I’ve come to appreciate lately. First, your health. Please, please do not take it for granted. It’s unbelievably miraculous that you can get up in the morning and take care of everything you need, that you can run around and feel the grass under your feet and the sunshine on your face. Please celebrate the fact that you can by doing something active every day. Celebrate the good food you have access to and the companionship it brings around the table. You can never have too much celebration of simple things.

If you have a dream that you really want to do, a mountain you want to climb or a reclusive bird you want to photograph or an insanely spicy dish you want to track down, find a way to do it now. You will eventually have more money in your life, but you will never have more time, and time is incredibly precious.

Even if you do absolutely everything right, which is to say, you follow my advice above, sometimes life is not fair, and bad things happen to good people. You never know when this will happen, to you or someone you love. So don’t let yourself have any regrets with the people you love. Tell them the important things. Spend time enjoying each other’s company.

Appreciate your crazy family for making you who you are and doing their best, and make your peace with your parents, who, let’s face it, did a lot for you, and knowing you, you gave them a pretty hard time. They won’t be around forever, and neither will you.

Cultivate your true friends. A palliative nurse named Bronnie Ware, someone who takes care of people who are dying, reported that one of the top regrets of people on their deathbeds is not staying in touch with friends. Life can get so busy and it’s easy to lose touch.

But I hope that something you will take from LUMES is the friendships you’ve made here. At the alumni reunion a few years ago, I was struck that everyone who spoke about LUMES spoke about their memories with each other, and about adventures they’d had together after graduating. The fire and energy and good heartedness of this group is one of the greatest gifts we can give you.

Please take care of each other, keep in touch with each other, and keep in touch with us. We can’t wait to see what the next ten years bring for you.


Picture
LUMES Batch 15 on Graduation Day

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  • Home
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  • Book
    • UNDER THE SKY WE MAKE
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    • Support the Book
    • Press Kit & Images
    • Request from Local Bookstore/Library
    • How to order outside US/Canada
    • Behind the Scenes
    • If My Book Were Music
  • Research
    • Lab Members
    • Peer-Reviewed Publications
    • Flying Less >
      • The Takeoff of Staying on the Ground
      • Policy Briefs
      • Ingen ny tid för avgång
      • Academics Flying Less
    • Radically Reducing Lund's Emissions
    • Climate Solutions >
      • We Can Fix It: FORMAS Comms
      • What Can I Do? 2 >
        • What Can I Do?
        • High School Teaching Materials
        • Fyra klimatsmarta livsstilsval
        • Press Release: 4 Lifestyle Choices That Most Reduce Your Carbon Footprint
        • The Climate Mitigation Gap: Study & Video Abstract
        • Study FAQs
      • Climate Science 101
      • Climate Policy >
        • IPCC Report on 1.5°
        • Kims Klimatval
        • COP21 (Paris Agreement)
      • Farmer adaptation
      • Harnessing biodiversity
    • Climate Education
    • Sustainable Land >
      • Global land use
      • European farming systems
      • Swedish land use
      • Ecosystem Services & OPERAs
      • REDD+
      • Land Acquisitions
    • Sustainable Food >
      • Urban Food Forestry
      • Local food in Iceland
      • One Great Meal
      • Dietary choices & climate change
      • Crop yields & climate
    • Wine, Climate, & Sustainability >
      • Wine & Climate: Impacts & Solutions
      • Wine Diversity for Climate Adaptation
      • Wine yields & quality under climate change
      • Farmer climate adaptation
      • Vineyard ecosystems & landscapes
      • European Wine Case Studies (OPERAs)
    • For Kids (K-12)
  • Writing
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