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Quiz: Our world, other worlds

Test your knowledge of how Earth is different from other planets, both within our solar system and beyond.

Test your knowledge of how Earth is different from other planets, both within our solar system and beyond.

You can browse a gallery containing this quiz and others here.

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NASA Climate Change website

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COVID-19 Mitigation Leads to Reduced Pollution Associated with Decreased Fossil Fuel Use
This view of Earth from space is a fusion of science and art, drawing on data from multiple satellite missions and the talents of NASA scientists and graphic artists.
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Twin Blue Marbles
Twin Blue Marbles
Head into the field with first responders, fire scientists and forest managers to see what challenges they face and how NASA can help mitigate the effects of longer and more intense fire seasons.
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Operation Earth: Wildfires
Video: 'Operation Earth: Wildfires'
This visualization shows carbon emissions from fires from January 1, 2003 through December 31, 2018. The color bar reflects the quantity of carbon emitted.
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Carbon Emissions from Fires...
Carbon Emissions from Fires: 2003-2018
The IPCC's four key findings
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The IPCC's four key findings
Graphic: The IPCC's four key findings
Test your knowledge about global temperature change and its impact on Earth's climate.
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Quiz: Global warming
Learn how you can explore Earth Now's many features, including real-time data visualizations of Earth's vital signs and 3D models of Earth-orbiting satellite missions.
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'Earth Now' Tutorial
'Earth Now' Tutorial
NASA's new Orbiting Carbon Observatory-2 space satellite will probe the carbon cycle like never before, telling us where the carbon is going and giving us clues as to where we will end up.
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Atmospheric carbon dioxide ...
Graphic: Measuring carbon dioxide from space
Quiz: The air we breathe
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Quiz: The air we breathe
Quiz: The air we breathe
Quiz: Carbon and the climate
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Quiz: Carbon and the climate
Quiz: Carbon and the climate
Test your knowledge of energy and its role in our climate.
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Test your knowledge of ener...
Quiz: Energy
Video: NASA scientists release the first new global map of Earth at night since 2012.
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Video: Lights of human acti...
Video: Lights of human activity shine in NASA's image of Earth at night
A super high-definition view of how carbon dioxide in the air moves around the world with the winds.
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Super HD view of global car...
Video: Super HD view of global carbon dioxide
NASA Earth Right Now promo
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NASA Earth Right Now promo
Video: NASA Earth Right Now promo
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 m...
Quiz: Carbon dioxide
The relentless rise of carbon dioxide levels in the atmosphere.
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The inexorable rise of carb...
Graphic: The relentless rise of carbon dioxide
Earth discovered - Climate 365 graphic
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Earth discovered - Climate ...
Graphic: Earth, discovered
Climate time machine interactive
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Climate time machine intera...
Interactive: Climate time machine
Land. Water. Fire. Ice. These elements are basic ingredients that make up planet Earth. Take a moment to admire the magnificent spectacle of our stunning home planet from the perspective of space.
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Land. Water. Fire. Ice. The...
Video: Majestic Planet
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 th...
Video: Following atmospheric carbon dioxide
An animation shows several high impact events across the globe between August 2019 and January 2020, including the Australian bushfires.
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Global Transport of Smoke f...
Global Transport of Australian Bushfire Smoke
NASA scientists are working to understand if our land and ocean can continue to absorb carbon dioxide at the current rate – and for how long.
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Infographic: Earth's carbon...
Infographic: Earth's carbon cycle is off balance
This image shows a spinning formation of ice, clouds and low-lying fog off the eastern coast of Greenland. This image was acquired by the Landsat 7 satellite on May 14, 2001. This is a false-color composite image made using infrared, red and green wavelengths.
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Whirlpool
Whirlpool
These cloud formations were seen over the western Aleutian Islands. Their color variations are probably due to differences in temperature and in the size of water droplets that make up the clouds. This image was acquired by the Landsat 7 satellite on June 16, 2000.
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Aleutian clouds
Aleutian clouds
Video: Simulation of global clouds and aerosols from September 1, 2005, to December 31, 2005.
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Video: Simulated clouds and...
Video: Simulated clouds and aerosols

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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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