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Global Climate Change
Vital Signs of the Planet
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FAQ

What’s the difference between glacier or ice sheet surface mass balance and total mass balance?
Can new NASA carbon-to-oxygen conversion technology like MOXIE be used to address climate change?
How might Earth’s atmosphere, land, and ocean systems respond to changes in carbon dioxide over time?
Is the ocean continuing to warm?
How is Earth’s sea ice faring in our warming world?
Which measurement is more accurate: taking Earth’s surface temperature from the ground or from space?
How are Earth’s mountain glaciers faring in a warming world?
What happens if the next solar cycle becomes less active? Will we enter into a new ice age?
Are the land-based ice sheets in Greenland and Antarctica continuing to lose mass (ice)?
Can you explain the urban heat island effect?
Has Earth continued to warm since 1998?
What do volcanoes have to do with climate change?
Where do global temperature data come from?
How do scientists deal with changes in where data come from?
Does data processing destroy the original data?
Does data processing make temperature data warmer?
Once the invalid data are eliminated, are global temperature data ready to use?
How do scientists know their data-processing techniques are reliable?
What kinds of data do scientists use to study climate?
Can scientists use global temperature data as is?
May I use content and imagery from your website? If so, to whom do I credit them?
Which is a bigger methane source: cow belching or cow flatulence?
How do I cite your website?
If all of Earth's ice melts and flows into the ocean, what would happen to the planet's rotation?
Why does the temperature record shown on your "Vital Signs" page begin at 1880?
What’s the difference between weather and climate?
What’s NASA got to do with climate change?
Is it too late to prevent climate change?
What’s the difference between climate change and global warming?
How do we know what greenhouse gas and temperature levels were in the distant past?
Is the ozone hole causing climate change?
Is the Sun causing global warming?
What is the greenhouse effect?
Do scientists agree on climate change?

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Interactives, galleries and apps

Images of Change

Images of Change

Explore a stunning gallery of before-and-after images of Earth from land and space that reveal our home planet in a state of flux.
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Climate Time Machine

Climate Time Machine

Travel through Earth's recent climate history and see how increasing carbon dioxide, global temperature and sea ice have changed over time.
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Eyes on the Earth

Eyes on the Earth

Track Earth's vital signs from space and fly along with NASA's Earth-observing satellites in an interactive 3D visualization.
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Global Ice Viewer

Global Ice Viewer

Earth's ice cover is shrinking. See how climate change has affected glaciers, sea ice, and continental ice sheets.
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This website is produced by the Earth Science Communications Team at

NASA's Jet Propulsion Laboratory | California Institute of Technology

Site Editor: Holly Shaftel
Managing Editor: Susan Callery
Senior Producer: Randal Jackson
Senior Science Editor: Daniel Bailey
Science Editor: Susan Callery

Site last updated: May 25, 2022