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Quiz: Ocean salinity

Test your knowledge of ocean salinity and its relationship to climate change.

Test your knowledge of ocean salinity and its relationship to climate change.

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NASA Climate Change website

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Salinity plays a major role in global ocean circulation and changes in salinity may impact regional and global climates. NASA's Aquarius mission is painting a global picture of our planet's salty waters.
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Salinity plays a major role in global ocean circulation and changes in salinity may impact regional and global climates. NASA's Aquarius mission is painting a global picture of our planet's salty waters. NASA
Video: Aquarius
NASA scientists say 2013 tied for the seventh warmest of any year since 1880, continuing a long-term trend of rising global temperatures.
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Video: Global Temperature Variation
Video: Global Temperature Variation
Oceanographer Josh Willis discusses the heat capacity of water, performs an experiment to demonstrate heat capacity using a water balloon and describes how water's ability to store heat affects Earth's climate.
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Oceanographer Josh Willis discusses the heat capacity of water, performs an experiment to demonstrate heat capacity using a water balloon and describes how water's ability to store heat affects Earth's climate.
Video: Oceans of Climate Change
Color-coded map of changing global surface temperature anomalies from 1880 through 2017. 
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Graphic: Global warming from 1880 to 2017
Graphic: Global warming from 1880 to 2017
Captured onboard a NASA Operation IceBridge flight to survey glacier change in a warming world, this photograph shows a beach and stream in Russel Fjord, Alaska, near the terminus of Hubbard Glacier.
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Beached bergs in Alaska
Beached bergs in Alaska
Test your knowledge of energy and its role in our climate.
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Test your knowledge of energy and its role in our climate.
Quiz: Energy
Ice covers 10 percent of Earth's surface and helps moderate the planet's temperature. Glaciers and ice sheets around the world are melting at an alarming rate. By keeping an eye on Earth's ice from space, NASA satellites help us understand the global effects of climate change.
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Ice covers 10 percent of Earth's surface and helps moderate the planet's temperature. Glaciers and ice sheets around the world are melting at an alarming rate. By keeping an eye on Earth's ice from space, NASA satellites help us understand the global effects of climate change.
Video: Frozen Earth
Video: Global sea level rise is accelerating incrementally over time rather than increasing at a steady rate.
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New study finds sea level rise accelerating
Video: New study finds sea level rise accelerating
Now you see it, now you don't - Climate 365 graphic
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Now you see it, now you don't - Climate 365 graphic
Graphic: Dramatic glacier melt
With autumn's arrival, chlorophyll begins to cede its dominance in the photosynthetic process, revealing yellow and orange tones on land, while in the ocean and lakes, phytoplankton pigments highlight different water masses and current systems.
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Changing colors across land and ocean are revealed as autumn comes to North America. As chlorophyll begins to cede its dominance to other pigments in the photosynthetic process, yellow and orange tones are revealed. Meanwhile, in the ocean and lakes, phytoplankton pigments highlight different water masses and current systems.
Photosynthetic pigments by land and sea
Quiz: The air we breathe
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Quiz: The air we breathe
Quiz: The air we breathe
Earth discovered - Climate 365 graphic
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Earth discovered - Climate 365 graphic
Graphic: Earth, discovered
Carbon dioxide is the main heat-trapping greenhouse gas that humans emit. How much do you know about it and its impact on global warming and climate change?
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Carbon dioxide quiz - how much do you know?
Quiz: Carbon dioxide
The IPCC's four key findings
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The IPCC's four key findings
Graphic: The IPCC's four key findings
Every summer, phytoplankton spread across the North Atlantic, with blooms spanning hundreds and sometimes thousands of miles. Blooms off Scandinavia seem to be particularly intense in summer 2018.
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A vortex of lighter green phytoplankton swirls in the North Atlantic.
Summer blooms in the Baltic
Climate time machine interactive
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Climate time machine interactive
Interactive: Climate time machine
City vs. desert - Climate365 graphic
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City vs. desert - Climate365 graphic
Graphic: City vs. desert temperatures
Video: Using observations from NASA's Orbiting Carbon Observatory (OCO-2) satellite, scientists developed a model of the behavior of carbon in the atmosphere from September 1, 2014 to August 31, 2015.
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Following carbon dioxide through the atmosphere
Video: Following atmospheric carbon dioxide
Pliocene CO2 graphic - climate.nasa.gov
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Pliocene CO2 graphic - climate.nasa.gov
Graphic: Carbon dioxide hits new high
Curling snow drifts are magnified by the terrain around the 1,400 mile Dnieper River, flowing from Russia to the Black Sea.
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The wild, frozen Dnieper River
The wild, frozen Dnieper River
The past decade has been the hottest ever recorded since global temperature records began 150 years ago. This video discusses the impacts of the sun's energy, Earth's reflectance and greenhouse gasses on global warming.
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The past decade has been the hottest ever recorded since global temperature records began 150 years ago. This video discusses the impacts of the sun's energy, Earth's reflectance and greenhouse gasses on global warming.
Video: Temperature Puzzle
Temperature agreement - Climate 365 graphic
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Temperature agreement - Climate 365 graphic
Graphic: Earth's temperature record
NASA explores. From its earliest days of sounding rockets and balloon-borne instruments, to Apollo and Hubble and missions to Mars. This mission of exploration has also always focused on our own corner of the universe, Earth - the home frontier. Earth is still the only planet we've ever been to, as this video explains.
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NASA explores. From its earliest days of sounding rockets and balloon-borne instruments, to Apollo and Hubble and missions to Mars. This mission of exploration has also always focused on our own corner of the universe, Earth - the home frontier. Earth is still the only planet we've ever been to, as this video explains.
Home Frontier
From NASA's Operation IceBridge campaign in Alaska: A high altitude view of Icy Bay, in the Wrangell-Saint Elias Wilderness. Just a century ago, this body of water was covered in ice.
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Icy Bay, Alaska
Icy Bay, Alaska
We know seas are rising and we know why. The urgent questions are by how much and how quickly.
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Infographic: Sea level rise
Infographic: Sea level rise

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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 Mobile Apps

Climate Mobile Apps

Keep track of Earth's vital signs, see the planet in a state of flux and slow the pace of global warming with NASA's free mobile apps.
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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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