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UN Climate Report Change Land Use to Avoid Worst Case Climate

 

 

BY SETH BORENSTEIN and JAMEY KEATEN

,Associated PressAugust 8, 2019

 GENEVA (AP) — Human-caused climate change is dramatically degrading the Earth's land and the way people use the land is making global warming worse, a new United Nations scientific report says. That creates a vicious cycle which is already making food more expensive, scarcer and less nutritious.

"The cycle is accelerating," said NASA climate scientist Cynthia Rosenzweig, a co-author of the report. "The threat of climate change affecting people's food on their dinner table is increasing."

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.

Earth's land masses, which are only 30% of the globe, are warming twice as fast as the planet as a whole. While heat-trapping gases are causing problems in the atmosphere, the land has been less talked about as part of climate change. A special report, written by more than 100 scientists and unanimously approved by diplomats from nations around the world Thursday at a meeting in Geneva, proposed possible fixes and made more dire warnings.

"The way we use land is both part of the problem and also part of the solution," said Valerie Masson-Delmotte, a French climate scientist who co-chairs one of the panel's working groups. "Sustainable land management can help secure a future that is comfortable."

Scientists at Thursday's press conference emphasized both the seriousness of the problem and the need to make societal changes soon.

"We don't want a message of despair," said science panel official Jim Skea, a professor at Imperial College London. "We want to get across the message that every action makes a difference."

Still the stark message hit home hard for some of the authors.

"I've lost a lot of sleep about what the science is saying. As a person, it's pretty scary," Koko Warner, a manager in the U.N. Climate Change secretariat who helped write a report chapter on risk management and decision-making, told The Associated Press after the report was presented at the World Meteorological Organization headquarters in Geneva. "We need to act urgently."

The report said climate change already has worsened land degradation, caused deserts to grow, permafrost to thaw and made forests more vulnerable to drought, fire, pests and disease. That's happened even as much of the globe has gotten greener because of extra carbon dioxide in the air. Climate change has also added to the forces that have reduced the number of species on Earth.

 

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