'Code red for humanity,' warns grim UN report on climate change
Earth’s climate is getting so hot that temperatures in about a decade will probably blow past a level of warming that world leaders have sought to prevent, according to a report released Monday that the United Nations calls a “code red for humanity.”
In three scenarios, the world will also likely exceed 2 degrees Celsius over pre-industrial times — the other, less stringent Paris goal — with far worse heat waves, droughts and flood-inducing downpours “unless deep reductions in carbon dioxide and other greenhouse gas emissions occur in the coming decades,” the report said.
As the planet warms, places will get hit more not just by extreme weather but by multiple climate disasters that occur simultaneously, the report said. That’s like what’s now happening in the Western U.S., where heat waves, drought and wildfires compound the damage, Mearns said. The report described five different future scenarios based on how much the world reduces carbon emissions. They are: a future with incredibly large and quick pollution cuts; another with intense pollution cuts but not quite as massive; a scenario with moderate emissions; a fourth scenario where current plans to make small pollution reductions continue; and a fifth possible future involving continued increases in carbon pollution.
“Anything we can do to limit, to slow down, is going to pay off,” Tebaldi said. “And if we cannot get to 1.5, it’s probably going to be painful, but it’s better not to give up.”
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