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Farmers in focus: Effects of elevated CO2 concentration on crops
Agriculture is a key socio-economic sector that both influences the climate and is exposed to climate impacts. To reach targets on food security, protection of biodiversity and the natural environment as well as on climate mitigation for the global common land, it is crucial to know how and where climate change and increasing atmospheric concentrations of CO2 affect crops. Decision makers and farmers need to quantify the risks to their sector and evaluate sustainable adaptation and mitigation strategies. An international team of agro-climatic experts, including PIK researcher Christoph Müller, has reviewed existing crop models that are used for these climate change risk assessments: While the size of CO2 fertilization effects is still uncertain to some extent, their results, published in Nature Food today, suggest that presenting crop modelling results without accounting elevated CO2 simulations are obsolete and don't offer added value to decision makers.
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Low food prices, high energy use: The pros and cons of emerging technology in our food system
12/08/2020 - An international team of scientists, including PIK researchers, has identified the potential impacts emerging from food system technologies in relation to the Sustainable Development Goals. In a new study, that has been published in Lancet Planetary Health, they find that while new technologies and innovation can help fix some issues with the food system, they also have far-reaching impacts. These can cause disruption and unintended consequences, some beneficial and some not, for achieving the Sustainable Development Goals. Food system innovation will be key to succeed, but new technologies need to be guided by science-based targets to avoid trade-offs and rebound effects.
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FoodSystemTargets
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Starved, stuffed and squandered: New study reveals consequences of decades of global nutrition transition
11/18/2020 - Just a handful of rice and beans – a part of our world is starved. Hawaiian Pizza and ice-cream – another part of our world is stuffed, throwing away food every day. This gap is likely to worsen, while food waste will increase and pressure on the environment will go up, a new study shows. Researchers from the Potsdam Institute for Climate Impact Research (PIK) assessed the consequences if the current nutrition transition, from scarce starch-based diets towards processed foods and animal products, continues – the calculations combine, for the first time, estimates for under- and overweight, food composition and waste. Their findings provide a startling look ahead: By 2050, more than 4 billion people could be overweight, 1.5 billion of them obese, while 500 million people continue to be underweight.
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Chen
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Lüttringhaus
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Climate KIC IRMA - YLIT
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CLIMSU
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GeoCare
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WETLANDS 2019
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