Global Warming
From 1880 to 2012, the Earth warmed by 1.5°F (0.85°C), dramatically reversing a long-term millennial cooling trend.[1] The physics behind the Earth’s temperature imbalance is well established. Scientists first determined that greenhouse gases in the atmosphere trap heat near the Earth's surface in the 19th century. Since the late 1970s, scientists have known that global warming is underway due to the increase in greenhouse gases from human activities.
Read MoreMay 6, 2020 | Washington Post
Global warming pushes April temperatures into record territory, as 2020 heads for disquieting milestone
May 1, 2020 | Washington Post
America’s northernmost city just recorded its first record-low temperature in 13 years
Apr 14, 2020 | The Weather Channel
March 2020 Was Earth's Second-Warmest March on Record, NOAA Says
Nov 13, 2017 | Maximiliano Herrera
Extreme Global Temperatures
Oct 2, 2017 | Earth System Research Laboratory
Mauna Loa CO2 Record
Mar 15, 2017 | Global Historical Climatology Network–Daily (GHCN-D)
US Annual Average Temp as Departure from Normal
Jan 14, 2020 | Advances in Atmospheric Sciences
Record-Setting Ocean Warmth Continued in 2019
Jan 2, 2020 | Nature Climate Change
Climate change now detectable from any single day of weather at global scale
Dec 5, 2019 | Geophysical Research Letters
Evaluating the performance of past climate model projections
Earth Systems Signals
Global warming is causing widespread and rapid changes in the atmosphere, ocean, cryosphere and biosphere.
Heat Signals
The Earth is getting hotter due to human activities that release heat-trapping gases into the atmosphere.
Drought Signals
Climate change is making droughts more likely to occur, and more severe when they do.
Wildfires Signals
Climate change is increasing the size, frequency, intensity and seasonality of wildfires.
Hurricanes Signals
Warmer temperatures increase the rate of water evaporation, which feeds moisture and energy into storms.
Floods Signals
Worsening floods due to climate change are putting a growing number of communities at risk.