Thermal Expansion of the Ocean
As the ocean warms, the density increases causing the water to expand in volume. Thermal ocean expansion is one of the major contributors to sea level changes during the 20th and 21st centuries. Salinity changes within the ocean also have a significant impact on the local density and thus local sea level, but have little effect on global average sea level change.
Read MoreEvents
Oct 25, 2021
California Bomb Cyclone and Atmospheric River October 2021
Jun 23, 2021
Atlantic Hurricane Season 2021
Feb 19, 2021
Polar Vortex Breakdown and Central US Winter Storms February 2021
Headlines
Jan 25, 2022 | Climate Nexus Hot News
Air Pollution, Lack Of Snow, Hang Over Winter Olympics
Jan 20, 2022 | Yahoo News
Southern snowstorm likely worsened by climate change, scientists say
Jan 19, 2022 | Climate Nexus Hot News
'Socially Vulnerable' Schools Set Back By Climate-Fueled Disasters Disproportionately— GAO Report
Real-Time Data
Jan 31, 2018 | High Plains Regional Climate Center | Applied Climate Information System
US Seasonal Precipitation Totals
Nov 13, 2017 | Maximiliano Herrera
Extreme Global Temperatures
Oct 2, 2017 | Earth System Research Laboratory
Mauna Loa CO2 Record
Science Sources
Jan 12, 2022 | Advances in Atmospheric Sciences
Another Record: Ocean Warming Continues through 2021 despite La Niña Conditions
Nov 19, 2021 | Global Change Biology
Plague risk in the western United States over seven decades of environmental change
Nov 17, 2021 | Nature Communications
Forest fires and climate-induced tree range shifts in the western US
Select a pillar to filter signals
Air Mass Temperature Increase
Arctic Amplification
Extreme Heat and Heat Waves
Glacier and Ice Sheet Melt
Global Warming
Greenhouse Gas Emissions
Land Ice and Snow Cover Decline
Land Surface Temperature Increase
Permafrost Thaw
Precipitation Falls as Rain Instead of Snow
Sea Ice Decline
Sea Surface Temperature Increase
Season Creep/ Phenology Change
Snowpack Decline
Snowpack Melting Earlier and/or Faster
Atmospheric Moisture Increase
Extreme Precipitation Increase
Runoff and Flood Risk Increase
Total Precipitation Increase
Atmospheric Blocking Increase
Atmospheric River Change
Extreme El Niño Frequency Increase
Gulf Stream System Weakening
Hadley Cell Expansion
Large Scale Global Circulation Change/ Dynamical Changes
North Atlantic Surface Temperature Decrease
Ocean Acidification Increase
Southwestern US Precipitation Decrease
Surface Ozone Change
Surface Wind Speed Change
Drought Risk Increase
Land Surface Drying Increase
Intense Atlantic Hurricane Frequency Increase
Intense Cyclone, Hurricane, Typhoon Frequency Increase
Intense Northwest Pacific Typhoon Frequency Increase
Tropical Cyclone Steering Change
Wildfire Risk Increase
Coastal Flooding Increase
Sea Level Rise
Air Mass Temperature Increase
Storm Surge Increase
Thermal Expansion of the Ocean
Winter Storm Risk Increase
Coral Bleaching Increase
Habitat Shift or Decline
Parasite, Bacteria and Virus Population Increase
Pine Beetle Outbreaks
Heat-Related Illness Increase
Infectious Gastrointestinal Disease Risk Increase
Respiratory Disease Risk Increase
Vector-Borne Disease Risk Increase
Storm Intensity Increase
Tornado Risk Increase
Wind Damage Risk Increase
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.
