International, authoritative climate report states 2018 was the fourth warmest year on record.
News & Features
The climate system we share is big and complex. Assessments like the State of the Climate depend on expertise from around the world and around the sciences. This year's "Meet the Author" profile features two contributors to the African section of the "Regional Climates" chapter.
El Niño has ended, bringing a transition to ENSO-neutral conditions. How long can we expect neutral conditions to last?
Looking for a sustainable alternative to harvesting wild seaweed, a small California company partnered with a commercial oyster grower to test-farm native seaweeds. The crop reduced pollution and buffered local ocean acidification.
Dr. Haiyan Teng explains why the moisture in the ground you walk across may have important consequences for the summertime climate.
With specially designed sensors mounted on their own cars, volunteers in each city will drive pre-planned routes, recording heat and humidity as they go. Scientists will stitch their results into a detailed map showing the hottest parts of each city.
From extreme heat to infectious diseases, the impacts of human-caused global warming are a threat to human lives. According to the latest National Climate Assessment, thousands of lives could be saved in the U.S. by reducing greenhouse gases and improving resilience to climate change.
American Eunice Foote was an amateur scientist and women's rights pioneer from the mid-1800s whose experiments foreshadowed the discovery of Earth's greenhouse effect.
Extreme heat in Alaska in early July 2019 contributed to fire activity and terrible air quality.
El Niño conditions are likely to transition to neutral within a month or two. What’s in store for the rest of 2019?