A study has concluded that if the nations of the world live up to their promises, an international goal on climate change can be met. Scientists say that's a big if.
“For the first time we can possibly keep warming below the symbolic 2-degree mark with the promises on the table. That assumes of course that the countries follow through on the promises,” said study lead author Malte Meinshausen, a University of Melbourne climate scientist.
The study “examines only this optimistic scenario. It does not check whether governments are making efforts to implement their long-term targets and whether they are credible,” said Niklas Hohne of Germany, a New Climate Institute scientist who analyzes pledges for Climate Action Tracker and wasn’t part of this study. “We know that governments are far from implementing their long-term targets.
Mostly, he said, limiting warming to 2 degrees is still a big improvement compared to just five or ten years ago, when “everybody laughed like ‘ha we’ll never see targets on the table that bring us closer to 2 degrees’,” Meinshausen said. “Targets and implemented policies actually can turn the needle on future temperatures. I think that optimism is important for countries to see. Yes, there is hope.
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