Climate

  • In the Eocene, temperature differences between the equator and the Antarctic were half of what they are today. New research shows that the Antarctic Circumpolar Current (ACC) likely played a key role in this major shift from the more tropical, greenhouse climate to much cooler
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  • In the Eocene, temperature differences between the equator and the Antarctic were half of what they are today. New research shows that the Antarctic Circumpolar Current (ACC) likely played a key role in this major shift from the more tropical, greenhouse climate to much cooler
    more...
  • Research shows that increasing wind speeds and wave heights could be linked to climate change. However, not all recent and extreme weather events are due to changing climate. A separate study indicates that the record heat in Russia recorded in 2010 was a fluke, and
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  • By flying aircraft into and above rain clouds, scientists from NASA and other organizations are trying to understand why certain clouds produce copious amounts of rain.
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  • A new study indicates that the Earth could recover from rising CO2 emissions faster than previously thought. Fifty-six million years ago, during a period of rising temperatures and atmospheric CO2, the Earth increased its ability to pull carbon from the air and sped up the
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  • Greenhouse gases have increased more frequently in Earth's history than previously believed. Fluxes involved a significant exchange of carbon between surface reservoirs and the atmosphere. Higher levels of CO2 affect nutrient uptake by planets, which could cause problems as the modern climate continues to heat
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  • A new study shows that melting ice sheets in Greenland and Antarctica are contributing more to rising sea levels than other sources, such as mountain glaciers and ice caps. Studying these sheets is important, because if they collapse they could dramatically change the level of
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  • Intense global warming may have occurred more frequently in Earth's past than previously believed. New research shows that release of carbon dioxide from the deep oceans could have triggered these ancient 'hyperthermal' events.
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  • From extreme precipitation events to catastrophic droughts, the effects of climate change may be heralding in a new era of extreme weather. Scientists are trying to determine what the repercussions for the Earth's biosphere could be.
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  • The ability of organisms to adapt to our changing climate could cause profound changes to the biosphere. Some microbes might remain dormant in environments until conditions improve. Invasive species could move into new environments, potentially triggering a mass extinction.
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