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GliderGuider

(21,088 posts)
Tue Sep 23, 2014, 09:11 AM Sep 2014

Worst Case Carbon Dioxide Emissions Increases Continue — 40 Gt in 2013

Worst Case Carbon Dioxide Emissions Increases Continue — Hitting 40 Billion Tons Per Year in 2013

A new report from the Global Carbon Project shows the world’s machines are belching more carbon dioxide than ever before. The report, which measures global CO2 emissions, found that gases from all sources jumped by more than 750 million tons during 2013 — a 2.3 percent increase in the dangerous hothouse gas over already extreme 2012 emission levels.

In total, 39.8 billion tons of CO2 hit the atmosphere in 2013, up from about 39.1 billion tons in 2012.

On the current track, global CO2 emissions will double in about 30 years. This pace of emissions increase is along the worst-case path projected by the UN’s IPCC. One that will hit 8.5 watts per meter squared of additional warming at the top of the Earth’s atmosphere and greater than 1,000 ppm CO2 equivalent greenhouse gas heat forcing by the end of this century.

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Such a massive increase from human sources does not include amplifying feedback emissions from global methane or CO2 stores such as those now apparently destabilizing in the Arctic. Such emissions could add an additional 20 to 30 percent or greater heat forcing on top of the human forcing, according to scientific estimates, by the end of this century.

The massive blow would be more than enough to trigger a hothouse extinction event — one that could well rival or exceed the Permian (also known as ‘the great dying’) in its ferocity due to the very rapid pace of the human heat accumulation.

Is it time for another climate march yet?
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