Even the 'optimistic' climate change forecast is catastrophic

10:41am PST - January 29th, 2020    jon peters - Mashable

Here's the deal. Humanity is on pace to heat Earth by around 3 degrees Celsius, or 5.4 degrees Fahrenheit, above pre-Industrial Revolution temperatures by the century's end. That level of warming would be devastating. Why? The world has warmed by a little ove…