The Greenland and Antarctic ice sheets are losing significant amounts of land-based ice as a result of human-caused global warming. Data from NASA’s GRACE and GRACE Follow-On satellites show that the land ice sheets in both Antarctica (upper chart) and Greenland (lower chart) have been losing mass since 2002. The GRACE mission concluded science operations in June 2017.
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One way that scientists monitor climate change is through the measure of sea ice extent. Sea ice extent is the area of ice that covers the Arctic Ocean at a given time. Sea ice plays an important role in reflecting sunlight back into space, regulating ocean and air temperature, circulating ocean water, and maintaining animal habitats.
The Earth’s surface contains many forms of snow and ice, including sea, lake, and river ice; snow cover; glaciers, ice caps, and ice sheets; and frozen ground. Climate change can dramatically alter the Earth’s snow- and ice-covered areas because snow and ice can easily change between solid and liquid states in response to relatively minor changes in temperature. This chapter focuses on trends in snow, glaciers, and the freezing and thawing of oceans and lakes.
CPO-funded scientists theorize why snowpack in coastal regions, the Arctic, and the Western U.S. may be among the most at-risk for premature melt from rising temperatures
The Arctic is the ground zero of climate change, and the polar bear is on the front line. Filled with groundbreaking photography that reveals the breathtaking landscapes of the Arctic and the transformations of the environment through the changing lives of polar bears, it’s a firsthand report from the top of our planet.
Winner of three 2020 International Photography Awards and named Photographer of the Year from the Tokyo International Awards, explorer Sebastian Copeland’s stunning photography delivers unparalleled access to the least explored continent on Earth and galvanizes our awareness of the threats of global warming.
The Greenland Ice Sheet (GIS) is losing mass at a high rate1. Given the short-term nature of the observational record, it is difficult to assess the historical importance of this mass-loss trend.
First Peninsula-wide assessment of biological sensitivity to recent warming.