We're moving!
NASA's Global Climate Change website is going to look a little different in the coming months because we’re heading to a new home, a more integrated portal on science.nasa.gov. Keep your eyes on our new space as we transition.
Understanding our planet to benefit humankind
NASA missions study global climate change from air, sea, and space.
What Is Climate Change?
Evidence
How Do We Know Climate Change Is Real?
There is unequivocal evidence that Earth is warming at an unprecedented rate. Human activity is the principal cause.
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Causes
Why Is Climate Change Happening?
Human activities are driving the global warming trend observed since the mid-20th century.
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Effects
What Are the Effects of Climate Change?
The effects of human-caused global warming are happening now, are irreversible on the timescale of people alive today, and will worsen in the decades to come.
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Solutions
What Is Being Done to Solve Climate Change?
NASA provides the robust scientific data needed to understand climate change.
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From space, sky, sea, and land, NASA provides detailed climate data and research to the world.
Images of Change
Before-and-after images of Earth
Columbia Glacier melt, Alaska: 7/28/1986 - 7/2/2014