If people change the way they eat, grow food and manage forests, it could help save the planet from a far warmer future – UN climate report
"The cycle is accelerating," said NASA climate scientist Cynthia Rosenzweig, a report co-author.But if people change the way they eat, grow food and manage forests, it could help save the planet from a far warmer future, scientists said
A special report, written by more than 100 scientists and unanimously approved by diplomats from nations around the world at a meeting in Geneva, proposed possible fixes and made more dire warnings. In the worst-case scenario, food security problems change from moderate to high risk with just a few more tenths of a degree of warming from now.Scientists had long thought one of the few benefits of higher levels of carbon dioxide, the major heat-trapping gas, was that it made plants grow more and the world greener, Rosenzweig said.
But better farming practices — such as no-till agricultural and better targeted fertiliser application — have the potential to fight global warming too, reducing carbon pollution up to 18 percent of current emissions levels by 2050, the report said. With just another 0.5 degrees Celsius of warming, which could happen in the next 10 to 30 years, the risk of unstable food supplies, wildfire damage, thawing permafrost and water shortages in dry areas "are projected to be high," the report said.
Agriculture and forestry together account for about 23 percent of the heat-trapping gases that are warming the Earth, slightly less than from cars, trucks, boats and planes. Add in transporting food, energy costs, packaging and that grows to 37 percent, the report said.From about 2007 to 2016, agriculture and forestry every year put 5.7 billion tons of carbon dioxide into the air, but pulled 12.3 billion tons of it out.
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