Future climate change and projected impacts: Increased growth and yield rates due to higher levels of carbon dioxide and temperatures could result in longer growing seasons. For example, in mid to high latitude regions, according to the Intergovernmental Panel on Climate Change’s (IPCC) Fourth Assessment Report moderate local increases in temperature (1-2ºC) can have small beneficial impacts on crop yields.
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From collection: IAASTD - International assessment of agricultural science and technology for development
IAASTD/Ketill Berger, UNEP/GRID-Arendal