Retrospections

  • The news keeps us constantly in tune with environmental disasters and their effects on Earth's climate and biosphere. How did past generations who didn´t have television or a camera depict those dramatic moments in living geologic history? Through art.
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  • How did the Earth stay warm 3.8 billion years ago when the young sun was 30% weaker? It's a mystery scientists have long been trying to solve, and it may come down to global warming. Ancient warming on Earth can also provide important clues
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  • New research shows that the climate change of 12,000 years ago could have been the first catastrophic climate event attributed to humans. In modern times, humans are continuing to have profound effects on our planet, from wildfires to dramatic weather.
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  • There is a lot we don't yet understand about climate change, but humankind's influence on the Earth is becoming more and more apparent. Studying our effect will help us understand life's future on Earth.
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  • In this essay, David Schwartzman explains how we can communicate with intelligent aliens, finally making planet Earth a member of the Galactic Club.
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  • New studies on the carbon isotopes present in ancient plants and microorganism communities in modern soils are helping scientists improve climate change models. The studies are also providing new insight into the co-evolution of life and our planet.
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  • New studies on the carbon isotopes present in ancient plants and microorganism communities in modern soils are helping scientists improve climate change models. The studies are also providing new insight into the co-evolution of life and our planet.
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  • NASA's Opportunity rover on Mars recently participated in a public photography project called 'A Moment in Time.' On May 2 at 15:00 UTC, people all around the world took a photograph to show the variety of life on our world. Opportunity joined in, adding a
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  • Volcanoes play a major role in Earth's climate, as evidenced by the recent eruption in Iceland. Some volcanic activity that isn't quite as visible, like the ocean's version of the La Brea Tarpits off the Santa Barbara coast, also has an effect on life.
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  • The 2010 Astrobiology Science Conference was a wild rodeo of ideas, debates, and scientific discovery. Although there was far too much science presented over four days to cover in full, this round-up provides a few highlights.
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