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POPSGeologic Evidence of the Cause of Global Warming and Cooling The warming over the past 50 years is hardly even noticeable on the 15,000 year graph above. Compare the peaks about every 800-1000 years for the past 10,000 years (since the last full ice age), all are much warmer than what we're experiencing now. In fact the last 1,000 years has been unusually cool for this interglacial period, just looking at the graph it certainly looks like we've been over due for warming (or if our interglacial period is over another full ice age which would be much worse).
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POPSThe High Cost of McCarbonomics McCain's plan amounts to nothing less but stealing from taxpayers to buy political love from ZEV automakers with little or no reduction in CO2 emissions.
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POPSThe Poison Arrow: Corn-Based Ethanol The government seeks policy that stimulates industry, growth, wealth creation; corn production is near, easy, and most importantly: large-scale. Can we keep trying to fuel an ever-upward curve of consumption with fragile oil replacements like food crops? So far, the answer seems a resounding no. Meanwhile, we’re turning the Pacific into a garbage dump, and hoarding seeds for “doomsday”.
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POPSToxic gas caused the Great Dying? Once the gas made it to the ocean surface, it could have escaped into the atmosphere, triggering terrestrial extinction, Kump says. “Poisonous clouds of hydrogen sulfide wafting around the continents would have killed animals and vegetation,” he says. The gas also could have damaged the planet’s ozone layer letting destructive radiation reach Earth’s surface.
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POPSMassive volcano exploded under Antarctic icesheet
Evidence for this comes from a British-American airborne geophysical survey in 2004-5 that used radar to delve deep under the ice sheet to map the terrain beneath. Vaughan's team spotted anomalous radar reflections over 23,000 square kilometres (8,900 sq. miles), an area bigger than Wales. They interpret this signal as being a thick layer of ash, rock and glass, formed from fused silica, that the volcano spewed out in its fury. The amount of material -- 0.31 cubic kilometres (0.07 cubic miles) -- indicates an eruption of between three and four on a yardstick called the Volcanic Explosive Index (VEI). By comparison, the eruption of Mount St. Helens in 1980, which was greater, rates a VEI of five, and that of Mount Pinatubo in 1991 is a VEI of six. "We believe this was the biggest eruption in Antarctica during the last 10,000 years," BAS' Hugh Corr says. "It blew a substantial hole in the icesheet and generated a plume of ash and gas that rose around 12 kms (eight miles
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POPSVIETNAM WAR today Also read here: http://www.flickr.com/photos/santanuburagohain/1456735575/ http://www.flickr.com/photos/santanuburagohain/1457601038/
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