Evidence Shaky for Sun's Major Role in Past Climate Changes
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National Center for Atmospheric Research -- Computer models of Earth's climate have consistently linked long-term, high-magnitude variations in solar output to past climate changes.     Now a closer look at earlier studies of the Sun casts doubt on evidence of such cycles of brightness, their intensity and their possible influence on Earth's climate...
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A sudden influx of freshwater from North America's ancient Lake Agassiz to the North Atlantic 8,200 years ago triggered a precipitous cooling of the region, scientists believe. Now they are trying to predict if and when a similar scenario might happen again.
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Human-induced climate change has affected global rainfall patterns over the 20th Century, a study suggests.
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Research suggests that the sun's activity is not responsible for the onset of global warming.
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A prime piece of evidence linking human activity to climate change turns out to be an artifact of poor mathematics.
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Description: Not since the 1960s has Florida been battered by a rapid succession of hurricanes. Many people have been tempted to ask whether this has anything to do with a predicted increase in severe weather events associated with global warming.
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Hurricanes feed on warm water, and a   study released on Monday shows a link between warmer ocean   temperatures and human use of fossil fuels, challenging   skeptics who blame them on natural climate cycles.
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Major shifts in the British marine environment are being partially driven by climate change, according to a new report.
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Global warming and not a giant asteroid may have nearly wiped out life on Earth some 250 million years ago, an international team of scientists said on Thursday.
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Warmer temperatures in North America since 1950 were probably caused in part by human activity, the Bush administration said in a report that appeared to contradict the White House position there was no clear scientific proof on the causes of global warming.
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In a study with implications for how North American trees might respond to a changing climate, molecular information collected by Duke University researchers refutes a widely accepted theory that many of the continent's tree species migrated rapidly from the deep South as glaciers retreated at the end of the last Ice Age.
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Compelling evidence from a remote glacier suggests "drastic climate change," according to scientists.
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Warmer temperatures in North America  since 1950 were likely caused in part by human activities, the  Bush administration said in a report that seems to contradict  the White House position there was no clear scientific proof on  the causes of global warming.
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Global warming could cut a swathe through the planet's species over the coming centuries, warns a study released Wednesday that shows a link between rising temperatures and mass extinctions reaching back half a billion years.
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Something strange happened on the sun last week: all the sunspots vanished. This is a sign, say scientists, that solar minimum is coming sooner than expected.
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Blog: Paleontologists have found that precursors to dinosaurs weren't so rapidly replaced as previously thought.
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In terms of climate change, the weather matters a lot less than how people respond to it.