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Old 01-17-2018, 10:37 AM   #10
Sugar Will '04
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Using this data, “the team showed that about 17 teragrams per year of the increase is due to fossil fuels, another 12 is from wetlands or rice farming, while fires are decreasing by about 4 teragrams per year,” NASA said in a January 2 press release. “The three numbers combine to 25 teragrams a year — the same as the observed increase.”
To conduct their research, the scientists examined the methane molecules linked to different sources, focusing on carbon isotopes in the molecules, which helped them match the methane to different sources. Methane molecules rising from wetlands and farms have a relatively small concentration of heavy carbon isotopes, oil and gas-linked methane higher amounts, and methane from fires the most heavy carbon. The scientists also cross-checked their findings by looking at other associated gases, like ethane and carbon monoxide — and the numbers all fell into place.
The part I put in bold is using the same technique I have shared on here before when in 1955 scientist Hans Suess proves fossil fuels (carbon 12) were diminishing natural carbon (carbon 14) in the atmosphere making this the first time it was made possible to measure with accuracy the accumulation of fossil fuels in the atmosphere.

So don't be fooled by our politicans when/if they say things like "climate change is still up for debate" and "the science isn't settled yet".
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