Stopping warming at to 1.5 degrees Celsius (2.7 degrees Fahrenheit) since pre-industrial times or so can avoid or at least lessen some of the most catastrophic future climate change harms and for some people is a life-or-death matter, scientists have found in many reports. The 1.5 figure now it is the “overarching objective” of the Glasgow climate talks, called COP26, conference President Alok Sharma said on the first day of the conference. Then on Saturday he said the conference, which takes a break on Sunday, was still trying “to keep 1.5 alive.” For protesters and activists, the phrase is “1.5 to stay alive.” And 1.5 is closer than it sounds. That’s because it may sound like another 1.5 degrees from now but because it is since pre-industrial times, it’s actually only 0.4 degrees (0.7 degrees Fahrenheit) from now. The world has warmed 1.1 degrees (2 degrees Fahrenheit) since pre-industrial times. Read more.