Facts about Climate Change

1. 06

   Mountain glaciers worldwide have lost approximately 9 trillion tons of ice since 1961, shrinking by an average of 27 meters in thickness due to climate warming.

   Climate ChangeMay 14sharemeasurementcryosphereacceleration
2. 05

   Coral reefs have experienced four global mass bleaching events since 1998, with the 2016 event killing approximately 30 percent of corals in the Great Barrier Reef due to ocean warming from climate change.

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3. 04

   Between 1990 and 2020, the Arctic lost approximately 1.6 million square kilometers of sea ice during summer months due to climate change-driven warming.

   Climate ChangeMay 14sharemeasurementarcticice
4. 03

   Ocean heat content increased by approximately 0.13 degrees Celsius per decade from 1901 to 2020, with accelerating warming due to climate change in recent decades.

   Climate ChangeMay 14shareoceanmeasurementtemperature
5. 02

   Atmospheric carbon dioxide concentrations reached 421 parts per million in 2023, the highest level in over 3 million years according to NOAA measurements.

   Climate ChangeMay 14sharemeasurementatmospherehistory
6. 01

   The Greenland ice sheet lost approximately 280 billion tons of ice annually between 2002 and 2020 due to climate change according to NASA satellite measurements.

   Climate ChangeMay 14sharemeasurementcryosphereaccelerating