How fast is the earth warming up?

0.1 - 0.2 degrees Fahrenheit

1.2 - 1.4 degrees Fahrenheit

1 answer

The Earth’s average surface temperature has been increasing at a rate of approximately 0.2 degrees Fahrenheit (0.1 degrees Celsius) per decade over the past century, though this rate has accelerated in recent decades. Specifically, recent data indicates a warming of around 1.2 to 1.4 degrees Fahrenheit (0.7 to 0.8 degrees Celsius) since the late 19th century. Therefore, both ranges you provided are reflective of different aspects of the warming trend, with the latter being a cumulative change over a longer period.