Global Climate Change
Vital Signs of the Planet
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?
Can you explain the urban heat island effect?
Has Earth continued to warm since 1998?
Are the land-based ice sheets in Greenland and Antarctica continuing to lose mass (ice)?
What happens if the next solar cycle becomes less active? Will we enter into a new ice age?
What do volcanoes have to do with climate change?
How do scientists deal with changes in where data come from?
How do scientists know their data-processing techniques are reliable?
Does data processing destroy the original data?
Once the invalid data are eliminated, are global temperature data ready to use?
Does data processing make temperature data warmer?
What kinds of data do scientists use to study climate?
Where do global temperature data come from?
Can scientists use global temperature data as is?
Which is a bigger methane source: cow belching or cow flatulence?
May I use content and imagery from your website? If so, to whom do I credit them?
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?
Is the ozone hole causing climate change?
How do we know what greenhouse gas and temperature levels were in the distant past?
What’s the difference between climate change and global warming?
Is it too late to prevent climate change?
What’s NASA got to do with climate change?
What’s the difference between weather and climate?
Is the Sun causing global warming?
What is the greenhouse effect?
Do scientists agree on climate change?
Interactives, galleries and apps
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.
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.
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.
Global Ice Viewer
Earth's ice cover is shrinking. See how climate change has affected glaciers, sea ice, and continental ice sheets.