GEOLOGY

Detailed explanation-1: -According to an ongoing temperature analysis led by scientists at NASA’s Goddard Institute for Space Studies (GISS), the average global temperature on Earth has increased by at least 1.1° Celsius (1.9° Fahrenheit) since 1880.

Detailed explanation-2: -Scientists know this through evidence compiled from satellites, weather balloons, thermometers, weather stations and more. Since 1880, average global temperatures have increased by about 1 degrees Celsius (1.7° degrees Fahrenheit).

Detailed explanation-3: -Yes. Earth’s average surface air temperature has increased by about 1 °C (1.8 °F) since 1900, with over half of the increase occurring since the mid-1970s [Figure 1a].

Detailed explanation-4: -The Earth’s average surface temperature has increased by about 1.8°F (1.0°C) since the late 1800s. The 10 warmest years on record (since 1880) have all occurred since 1998, and all but one happened since 2005.

Detailed explanation-5: -The average temperature on Earth lies somewhere around 57 degrees Fahrenheit (13.9 degrees Celsius). According to climate information from the National Oceanic and Atmospheric Administration (opens in new tab) (NOAA), that was the 20th century average temperature, measured across land and ocean, night and day.