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As if any further proof was needed that climate change is under way, as North America broils in brutal heat, South America is experiencing one of its coldest winters on record.

When researchers studied core sediments from a shallow boreal lake, they found that storm activity has increased substantially over the past 150 years. This rise in storm frequency appears to be linked to solar activity, but also may be linked to higher global temperatures resulting from increased amounts of greenhouse gases.
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We’re still releasing the potent greenhouse gas methane into the atmosphere today, but there was a massive release in the past: About 55 million years ago, the Earth burped up a massive release of carbon dioxide into the atmosphere–an amount equivalent to burning all the petroleum and other fossil fuels that exist today. Geologist Will Clyde is concerned because "We don’t know where it came from. This is a big part of the carbon cycle that affected the climate system, and we don’t understand it."
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The Arctic is melting, but not everyone is worried–in fact, it’s opening up large reserves of oil and minerals that are causing a "cold rush" by various countries who want to mine the area. It may even lead to a new "cold war:" The US recently dispatched two nuclear-powered submarines out to patrol 150 miles north of Prudhoe Bay, Alaska, where the Chinese are eager to search for oil. This move comes at a time when Russia has increased missile testing in the region and Norway has moved its main military base to the far north.
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