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?

Antes de la Revolución Industrial, el clima de la Tierra cambiaba debido a eventos naturales como la actividad volcánica y las variaciones de la energía solar.

Karen St. Germain, NASA's director of Earth science, gave a presentation at the 2021 United Nations Climate Change Conference.

Explore Kaneohe Bay with NASA’s CORAL scientists. During field campaigns, scientists take in-water (in situ) measurements to validate the data from airborne instruments.

Color-coded map of changing global surface temperature anomalies from 1880 through 2021. 

A visualization shows global temperature changes per latitude zone from 1880 to 2021.

Video: Simulation of global clouds and aerosols from September 1, 2005, to December 31, 2005.

Animation of global water level variability

Animación simplificada del efecto invernadero.

This animation shows how global sea levels have risen more than 80 millimeters (3.15 inches) over the past three decades, which is like covering the U.S. in about 4 meters (about 13 feet) of water over that period.

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.

This animation compares sea surface salinity (saltiness) data from two NASA datasets from 2015 to 2017.

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.

Video: Global sea level rise is accelerating incrementally over time rather than increasing at a steady rate.

Video: Explore how scientists determine glacial speed from space.

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.

An animation shows several high impact events across the globe between August 2019 and January 2020, including the Australian bushfires.

A view from one of our flying science laboratories over the ice in Greenland during Operation IceBridge.

Video: Winter temperatures are soaring in the Arctic for the fourth winter in a row.

Video: A visualization of the annual Arctic sea ice "minimum" for each year from 1979 through 2020.

A super high-definition view of how carbon dioxide in the air moves around the world with the winds.

Los gases de efecto invernadero son vitales para la vida en la Tierra, pero la creciente concentración de ciertos gases, como el dióxido de carbono, está afectando el delicado equilibrio del planeta.

Video: Scientists combined an array of NASA satellite observations of Earth with data on human activities to map locations where freshwater is changing around the globe and why.

Pliocene CO2 graphic - climate.nasa.gov

A video depicts all seven continents on Earth converging over 250 million years into one new supercontinent called Aurica.