Discover how a weather front can cause clouds and storms with rain or snow.
Resource Type: Videos
Students match graphs showing aspects of observed climate change with statements that describe the observations.
Resource Type: Activities
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Resource Type: Images
When climate conditions, such as temperature and precipitation, vary from the expected averages this is called climate variability. Natural changes in the Earth system can cause climate variability, but scientists are concerned about climate variability resulting from human-caused climate change.
Resource Type: Information
Animation showing the monthly variation of sea ice extent in the Arctic from 2016 through 2018.
Resource Type: Videos
The troposphere is the lowest layer of Earth's atmosphere. Most of the mass (about 75-80%) of the atmosphere is in the troposphere. Most types of clouds are found in the troposphere, and almost all weather occurs within this layer.
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A blizzard isn’t just any old snowstorm. It’s extreme winter weather. Watch and learn what makes these storms special.
Resource Type: Videos
Earth is warming. While there is some variability year-to-year, the most recent years have been the warmest on record. Learn how Earth's temperature is taken and what record heat means.
Air pollutants have an impact on our planet's climate. Some pollutants cause the climate to warm, while others cause a temporary cooling effect.
Resource Type: Information