Includes natural changes (cyclic variability, volcanic eruptions, solar output) and human-caused changes (due to GHG emissions and land use changes)

Pattern in coral
January 23, 2014

NOAA is an agency that enriches life through science. From the surface of the sun to the bottom of the ocean, NOAA advances scientific understanding of Earth's environment, climate, and weather.

Intermountain Power Plant
January 23, 2014

Yes, human activities have increased the abundance of heat-trapping gases in the atmosphere, which a large majority of climate scientists agree is the main reason for the 1.5°F (0.85°C) rise in average global temperature since 1880.

Map of temperature patterns across Alaska with red for yellow, orange, and red for warm temperatures
July 16, 2019

Extreme heat in Alaska in early July 2019 contributed to fire activity and terrible air quality. 

April 10, 2018

El calentamiento global es un síntoma del problema mucho más grande del cambio climático causado por los humanos.

Boiled Lobster Plate
October 6, 2016

For New Englanders, the saying “as American as apple pie” may as well be “as New England as lobster.” But warming sea surface temperatures from climate change are forcing populations of the American lobster to higher latitudes than ever before—and upending fishing communities on the New England coast.

 

June 17, 2015

Global warming is one symptom of the much larger problem of human-caused climate change.

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