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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: i-node who wrote (930356)	4/13/2016 8:18:54 PM
From: Wharf Rat	Respond to of 1575761

"Unless you actually believe it is the cause of global warming" funny ( or not so funny, really) thing about that... pin.salsalabs.com April 12, 2016 Global Warming’s Terrifying New Chemistry Our leaders thought fracking would save our climate. They were wrong. Very wrong.” By Bill McKibben March 23, 2016 Global warming is, in the end, not about the noisy political battles here on the planet’s surface. It actually happens in constant, silent interactions in the atmosphere, where the molecular structure of certain gases traps heat that would otherwise radiate back out to space. If you get the chemistry wrong, it doesn’t matter how many landmark climate agreements you sign or how many speeches you give. And it appears the United States may have gotten the chemistry wrong. Really wrong. ’s one greenhouse gas everyone knows about: carbon dioxide, which is what you get when you burn fossil fuels. We talk about a “price on carbon” or argue about a carbon tax; our leaders boast about modest “carbon reductions.” But in the last few weeks, CO2’s nasty little brother has gotten some serious press. Meet methane, otherwise known as CH4. In February, Harvard researchers published an explosive paper in Geophysical Research Letters. Using satellite data and ground observations, they concluded that the nation as a whole is leaking methane in massive quantities. Between 2002 and 2014, the data showed that US methane emissions increased by more than 30 percent, accounting for 30 to 60 percent of an enormous spike in methane in the entire planet’s atmosphere. To the extent our leaders have cared about climate change, they’ve fixed on CO2. Partly as a result, coal-fired power plants have begun to close across the country. They’ve been replaced mostly with ones that burn natural gas, which is primarily composed of methane. Because burning natural gas releases significantly less carbon dioxide than burning coal, CO2 emissions have begun to trend slowly downward, allowing politicians to take a bow. But this new Harvard data, which comes on the heels of other aerial surveys showing big methane leakage, suggests that our new natural-gas infrastructure has been bleeding methane into the atmosphere in record quantities. And molecule for molecule, this unburned methane is much, much more efficient at trapping heat than carbon dioxide.... ...That’s why last month’s Harvard study came as such a shock. It used satellite data from across the country over a span of more than a decade to demonstrate that US methane emissions had spiked 30 percent since 2002. The EPA had been insisting throughout that period that methane emissions were actually falling, but it was clearly wrong—on a massive scale. In fact, emissions “are substantially higher than we’ve understood,” EPA Administrator Gina McCarthy admitted in early March. The Harvard study wasn’t designed to show why US methane emissions were growing—in other parts of the world, as new research makes clear, cattle and wetlands seem to be causing emissions to accelerate. But the spike that the satellites recorded coincided almost perfectly with the era when fracking went big-time.