If the nations of the world really want to limit climate change to the level agreed five years ago, it will not be enough to immediately abandon fossil fuels as the principal source of energy: the global food system demands radical overhaul.
Humans will have to make dramatic changes to every aspect of agriculture worldwide, to planetary diet and to much else besides.
That is because the global food system − everything from clearing land and felling forests for cattle ranches to the arrival of meat and two vegetables on a suburban family dinner plate − accounts for 30 per cent of the world’s greenhouse gas emissions. And to contain global heating later this century to no more than 1.5°C above the levels that existed before the Industrial Revolution, urgent action is needed.
In Paris in 2015, 195 nations undertook to limit the planetary thermometer rise to “well below” 2°C. The undeclared target was 1.5°C. In the last century, the global temperature has already risen by 1°C, and at the present rate it’s heading for a potentially catastrophic 3°C or more rise by around 2100.
Read the full article about food system causing greenhouse gases by Tim Radford at Eco-Business.
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