Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...
The cool conditions which have allowed ice caps to form on Earth are rare events in the planet's history and require many ...
Throughout Earth's history, ice caps have been very rare, but a model of the past 420 million years suggests an explanation ...
Extensive evidence, including global temperature and sea ice data, shows Earth's climate is changing due to human activity.
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