Russian Scientist Discovers Giant Arctic Methane Plumes

""The concentration of atmospheric methane increased unto three times in the past two centuries from 0.7 parts per million to 1.7ppm, and in the Arctic to 1.9ppm. That's a huge increase, between two and three times,"

I'm OK with her statement, until this:

"...and this has never happened in the history of the planet," she added.

So there's data for the last 4+ BILLION years with 10-50 year precision so that over a 100-200 year timespan, she can measure the slope of the line (rate in rise over the run of time) precisely enough to say that the slope of the line over the last 200 years is steeper than it has been in any other 200 year period in the last 4 billion years? Sorry, but I find that hard to believe.

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/qJsd7BLiN-0/russian-scientist-discovers-giant-arctic-methane-plumes

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