On Sept. 8, the climate clock turned red at Berlin's Mercator Research Institute, signaling that humanity had emitted so much carbon into the atmosphere that it could no longer fend off a 1.5 ...

Here, we provide a best estimate, which means that there is a 50 percent chance of reaching 1.5 degrees Celsius before the clock’s date, and similarly, that there is a 50 percent chance that the ...

Some people can’t be bothered to read the analog face of a traditional clock. Some people cannot stand the low frequency “hum ...