[MCN] Comparison of 2 lasting dangers: CO2 and nuclear waste

[Lance Olsen]

“The notion is pervasive in the climate science community and in the public at large that the climate impacts of fossil fuel CO2 release will only persist for a few centuries. This conclusion has no basis in theory or models of the atmosphere/ocean carbon cycle, which we review here. The largest fraction of the CO2 recovery will take place on time scales of centuries, as CO2 invades the ocean, but a significant fraction of the fossil fuel CO2, ranging in published models in the literature from 20–60%, remains  airborne for a thousand years or longer. Ultimate recovery takes place on time scales of hundreds of thousands of years, a geologic longevity typically associated in public perceptions with nuclear waste.”

David Archer & Victor Brovkin. The millennial atmospheric lifetime of anthropogenic CO2. 
Climatic Change (2008) 90:283–297 
DOI 10.1007/s10584-008-9413-1

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“If the GND’s ambition is a testament to anything, it is that there are no easy solutions here. We have built our standard of living on forms of energy that we now know pose a threat to our very existence. That is a simple summation of a monumental challenge; one where time has eroded our margin for incremental action. No matter what you think of the specifics, or lack of them, this is a conversation that is long overdue — and necessarily begins with a shout, not a whisper.”

The Green New Deal Is Unrealistic? Get Real

https://www.bloomberg.com/opinion/articles/2019-02-11/the-green-new-deal-is-unrealistic-get-real



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