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hatrack

(59,593 posts)
Wed Aug 8, 2018, 08:50 AM Aug 2018

Buried In CAFE Rollback Plan, Shitstain Admin Projects 790 ppm Carbon By 2100; "Horrfying" Outcome

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Although the White House has avoided addressing climate change, it made a rare acknowledgement that its proposal to weaken vehicle fuel efficiency standards would contribute to a warmer planet. Its prediction for what the atmosphere will look like in 2100 startled climate scientists — a carbon dioxide concentration of 789.76 parts per million. That's nearly double current levels. Scientists said reaching that mark would be devastating for the planet. Although humans would survive, much of that would depend on the ability to adapt to new conditions. Food and water scarcity would result from changing precipitation patterns and higher temperatures. Potentially billions of people would struggle. Some species and ecosystems would collapse.

"By mid Century, food and especially water shortages will likely become so widespread that regional conflicts and environmental refugees will dwarf anything we see now, and hence it is not really livable for all humans," Kevin Trenberth, a climate scientist at the National Center for Atmospheric Research, said in an email. "So the last time 800 ppm occurred is not really pertinent because there were not 10 billion people present."

The administration's chart attempts to prove that there will be little noticeable effect on global temperatures as a result of its plan, triggering "3/1,000ths of a degree Celsius increase in global average temperatures by 2100." It says that the estimated atmospheric CO2 under the Trump plan would be 789.76 ppm, compared with 789.11 ppm under the Obama plan. The agencies said its proposal would increase oil consumption by 500,000 barrels per day. The Trump administration does not acknowledge the significant impact of a world where emissions would rise to such an extreme level, one that would be far hotter, with dramatic sea-level rise and an increase in droughts and deadly heat waves.

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Kate Marvel, a physicist at Columbia University and a researcher at the Goddard Institute for Space Studies, said the administration's estimate would align with levels not seen in 50 million to 55 million years. She called it "horrifying," noting that it could result in a meter of sea-level rise. Michael Oppenheimer, a Princeton University climate expert, said it is "highly doubtful" that humans "would thrive in such a world, reached in a mere century."

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https://www.eenews.net/stories/1060092895

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