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Explore This Section
Climate Change
Facts
Vital Signs
Mitigation and Adaptation
Stories
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Eyes on the Earth


CLIMATE CHANGE

From the unique vantage point in space, NASA collects critical long-term
observations of our changing planet.



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THE OCEAN AND CLIMATE CHANGE

Our ocean is changing. With 70 percent of the planet covered in water, the seas
are important drivers of the global climate. Yet increasing greenhouse gases
from human activities are altering the ocean before our eyes. NASA and its
partners are on a mission to find out more.

Learn More



LATEST NEWS

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How Open Science and AI Are Advancing Hurricane Research


5 min read

NASA, NOAA Rank 2024 Ozone Hole as 7th-Smallest Since Recovery Began

Article1 month ago
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NASA Helps Find Thawing Permafrost Adds to Near-Term Global Warming

Article1 month ago
   
 * Evidence
 * Causes
 * Effects
   


HOW DO WE KNOW CLIMATE CHANGE IS REAL?

There is unequivocal evidence that Earth is warming at an unprecedented rate.
Human activity is the principal cause.

Earth-orbiting satellites and new technologies have helped scientists see the
big picture, collecting many different types of information about our planet and
its climate all over the world. These data, collected over many years, reveal
the signs and patterns of a changing climate.

Read More



WHAT IS CAUSING CLIMATE CHANGE?

Human activities are driving the global warming trend observed since the
mid-20th century.

Scientists attribute the global warming trend observed since the mid-20th
century to the human expansion of the "greenhouse effect" — warming that results
when the atmosphere traps heat radiating from Earth toward space.
Over the last century, burning of fossil fuels like coal and oil has increased
the concentration of atmospheric carbon dioxide (CO2). This increase happens
because the coal or oil burning process combines carbon with oxygen in the air
to make CO2.

Read More



WHAT ARE THE EFFECTS OF CLIMATE CHANGE?

The effects of human-caused global warming are happening now, are irreversible
for people alive today, and will worsen as long as humans add greenhouse gases
to the atmosphere.

We already see effects scientists predicted, such as the loss of sea ice,
melting glaciers and ice sheets, sea level rise, and more intense heat waves.
Scientists predict global temperature increases from human-made greenhouse gases
will continue. Severe weather damage will also increase and intensify.

Read More



IMAGES OF CHANGE

Before-and-after images of Earth.

Learn More




CLIMATE CHANGE RESOURCES

   


 * CLIMATE TIME MACHINE
   
   Climate change in recent history
   
   


 * GLOBAL ICE VIEWER
   
   Climate change’s impact on ice
   
   


 * MULTIMEDIA
   
   Vast library of images, videos, graphics, and more
   
   


 * EN ESPAÑOL
   
   Creciente biblioteca de recursos en español
   
   
   


CLIMATE DATA RESOURCES

   


 * SEA LEVEL CHANGE OBSERVATIONS FROM SPACE
   
   Established in 2014, this NASA-sponsored team works to improve the
   understanding of regional relative sea-level change on a range of timescales.
   They work with partners to translate the latest science and research into
   actionable information  and to communicate how impacts are increasing at the
   coast.
   
   


 * NASA CENTER FOR CLIMATE SIMULATION (NCCS)
   
   NCCS provides high performance computing for NASA-sponsored scientists and
   engineers. The purpose  is to enhance NASA capabilities in Earth science,
   with an emphasis on weather and climate prediction, and to enable future
   scientific discoveries that will benefit humankind.
   
   


 * GISS SURFACE TEMPERATURE ANALYSIS (GISTEMP)
   
   NASA’s Goddard Institute of Space Studies assembles one of the world's most
   trusted global temperature records, using a combination of surface air
   temperature data acquired by tens of thousands of meteorological stations, as
   well as sea surface temperature data from ship- and buoy-based instruments.
   
   


 * NASA EARTH EXCHANGE (NEX)
   
   NEX combines state-of-the-art supercomputing, Earth system modeling, and NASA
   remote sensing data feeds to deliver a work environment for exploring and
   analyzing terabyte- to petabyte-scale datasets covering large regions,
   continents or the globe.
   
   


 * GLOBAL MODELING AND ASSIMILATION OFFICE (GMAO)
   
   GMAO members perform research, develop models and assimilation systems, and
   produce quasi-operational products in support of NASA's missions. The Goddard
   Earth Observing System" (GEOS) family of models is used for applications
   across a wide range of spatial scales, from kilometers to many tens of
   kilometers. 
   
   
   


WORLD OF CHANGE

NASA Earth Observatory has produced a collection of image series that show some
features of Earth that have changed over time due to both natural and
human-induced causes.

Learn More
This false-color image, captured by the Landsat 8 satellite, shows Alaska's
Columbia Glacier and the surrounding landscape following the more than 20
kilometer retreat of the glacier between 1986 and 2019.
Credit: NASA Earth Observatory

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humanity, and inspires the world through discovery.

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