NASA (The National Aeronautics and Space Administration) and NOAA (the National Oceanic and Atmospheric Administration) found that the average global temperature is now more than 1 degree Celsius (2 degrees Fahrenheit) above what it was in the late 1800s. (As a reminder, the critical threshold of warming is 1.5 degrees Celsius). Earth’s global surface temperatures in 2019 were the second warmest since modern recordkeeping began in 1880, and the past five years have been the warmest of the last 140 years.