News tagged with seasonal changes

Mountain meadows dwindling in the Pacific Northwest

(—Some high mountain meadows in the Pacific Northwest are declining rapidly due to climate change, a study suggests, as reduced snowpacks, longer growing seasons and other factors allow trees to invade these unique ...

dateNov 02, 2012 in Environment
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Going to Earth's core for climate insights

( -- The latest evidence of the dominant role humans play in changing Earth's climate comes not from observations of Earth's ocean, atmosphere or land surface, but from deep within its molten core.

dateMar 10, 2011 in Earth Sciences
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Forest and savanna can switch quickly

( -- Two recent studies have found that environmental changes can bring previously stable forests and grasslands to tipping points that produce sudden large-scale and sometimes irreversible changes in which forest ...

dateOct 14, 2011 in Environment report
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