Thursday, May 15, 2008

20080515 Human-caused climate change widely impact Earth

A new NASA-led study shows human- caused climate change has made an impact on a
wide range of Earth' s natural systems, including permafrost thawing, plants
blooming earlier across Europe, and lakes declining in productivity in Africa
"This is the first study to link global temperature data sets, climate model
results, and observed changes in a broad range of physical and biological
systems to show the link between humans, climate, and impacts,"
"Humans are influencing climate through increasing greenhouse gas emissions,"

Biological systems also were impacted in a variety of ways, such as leaves unfolding and flowers blooming earlier in the spring, birds arriving earlier during migration periods, and plant and animal species moving toward Earth's poles and higher in elevation.

In aquatic environments such as oceans, lakes, and rivers, plankton and fish are shifting from cold-adapted to warm-adapted communities.

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