Definition of ice sheet
: ice cap 2
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Recent Examples of ice sheet from the Web
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The study found that periods of global warming, resulting in meltwater from Arctic sea ice, glaciers and ice sheets, disrupt the system with an influx of fresh water.
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But the melting of Arctic sea ice and Greenland's ice sheet can freshen northern waters and interfere with sinking.
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These are usually created by divergent ocean current flows or wind pushing the ice sheet apart.
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Warming seas expand, and water from melting glaciers and ice sheets have had nowhere to go but into the oceans.
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The scientific evidence has revealed a global temperature rise, warming oceans, shrinking ice sheets, glacial retreat, decreased snow cover, sea level rise, declining arctic sea ice and extreme weather events.
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The rhythmic ice ages of the last several million years were governed by slow-changing cycles in Earth’s orbit around the Sun, which sometimes conspired to bring stronger sunlight to the great ice sheets of the Northern Hemisphere.
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Another option, to address the more important problem of melting Antarctic ice sheets, is to construct artificial islands and berms to help hold back the sheets.
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Thinning ice makes life tougher for polar bears, which travel on ice sheets to find food.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ice sheet.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of ice sheet
1831
ICE SHEET Defined for English Language Learners
ice sheet
Definition of ice sheet for English Language Learners
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: a very large and thick area of ice that covers a region
Learn More about ice sheet
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See words that rhyme with ice sheet Britannica.com: Encyclopedia article about ice sheet
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