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A recent survey of Arctic permafrost has revealed that the northern tundra holds the world’s largest reserve of mercury, with its size estimated to be in the tens of millions of gallons. Ordinarily, the presence of the toxic metal wouldn’t be a problem, as it is locked away in the frozen soil, but researchers are concerned that as the permafrost melts due to global warming, that mercury trapped there could be released into the environment.
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The evidence pointing toward a major cometary impact that heralded the closure of the last ice age 13,000 years ago is steadily growing, with a new study from the University of Kansas offering more data that supports what is known as the Younger Dryas impact hypothesis.

"The hypothesis is that a large comet fragmented and the chunks impacted the Earth, causing this disaster," explains University of Kansas Emeritus Professor of Physics & Astronomy Adrian Melott. "A number of different chemical signatures–carbon dioxide, nitrate, ammonia and others–all seem to indicate that an astonishing 10 percent of the Earth’s land surface, or about 10 million square kilometers [3,9 million square miles], was consumed by fires."
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A new study has confirmed that waves generated by powerful storms can move massive seaside boulders that weigh hundreds of tons, and as global warming spurs stronger and more powerful storms, this finding illustrates the sheer force that our planet’s weather will challenge us–and the shape of our coastlines–with, in the decades to come.
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As Earth’s climate continues to warm, some scientists are looking at doing more than simply reducing humanity’s outpouring of greenhouse gases into the atmosphere by devising ways to actively cool the planet back to temperatures that our civilization is comfortable with. One of the proposed techniques would be to spray massive amounts of sulphur dioxide into the atmosphere to create a cloud layer that would reflect a portion of the Sun’s rays back into space, emulating the cooling effect that the gases from a large volcanic eruption would have.read more