The US economist William Nordhaus claimed as early as the 1970s, when scientific understanding of climate change was still taking shape, that warming of more than 2°C would “push global conditions ...

Nearly a decade ago, the world rallied around the Paris Agreement on climate change and the goal of holding global temperature rise to 1.5 degrees C (2.7 degrees F). Since then, the “1.5C goal” has ...

The primary focus of international climate negotiations this week in Baku, Azerbaijan, is how to pay for the costs of cutting global climate pollution and adapt to the impacts of climate change. But ...

New data from WRI finds that in most cities, the difference between 3 degrees C and 1.5 degrees C of warming is sizable. These findings hold immense consequences for people’s lives and livelihoods, as ...

Imagine you started a fire in your neighborhood, down the street from your house. You didn't mean to—you’re no arsonist—but there it is, blazing before your eyes. Your neighbor’s house is about to go ...

Nearly 200 nations shaped their climate plans around this number: 1.5 degrees Celsius. But that target, set seven years ago when there was less carbon in the sky, will almost certainly be overshot.

Three strikes and you’re out is a pretty good rule. And the politicians and negotiators attending the Paris climate summit, “COP21”, in December 2015 were facing their third strike. Their first and ...