NASA finds statistical evidence of global warming
- added May 16, 2008
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- JanforGore
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Climatic changes induced by humans have affected the flora and fauna, along with the physical environment of the world at a much faster pace than previously thought, scientists have said.
A new NASA-led study, noting changes in the physical system, such as glaciers shrinking, permafrost melting and lakes and rivers warming, has linked physical and biological impacts since 1970 with increase in temperatures during that period.
The scientists also noticed changes in biological systems such as leaves unfolding and flowers blooming at a faster pace, birds migrating earlier and plant and animal species moving towards the Earth's poles and higher altitudes.
In addition to global effects, the study also linked climate changes caused by humans with effects on individual continents, particularly North America, Europe and Asia.
The study was based on a database of more than 29,000 data series coming from about 80 studies, with at least 20 years of records between 1970 and 2004.
The team conducted statistical tests and found that patterns of observed impacts correspond with temperature changes around the globe, allowing them to conclude that global impacts are very likely due to human-caused warming.
A new NASA-led study, noting changes in the physical system, such as glaciers shrinking, permafrost melting and lakes and rivers warming, has linked physical and biological impacts since 1970 with increase in temperatures during that period.
The scientists also noticed changes in biological systems such as leaves unfolding and flowers blooming at a faster pace, birds migrating earlier and plant and animal species moving towards the Earth's poles and higher altitudes.
In addition to global effects, the study also linked climate changes caused by humans with effects on individual continents, particularly North America, Europe and Asia.
The study was based on a database of more than 29,000 data series coming from about 80 studies, with at least 20 years of records between 1970 and 2004.
The team conducted statistical tests and found that patterns of observed impacts correspond with temperature changes around the globe, allowing them to conclude that global impacts are very likely due to human-caused warming.
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- JanforGore
- 2 months ago
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