Dangerous Anthropogenic Interference levels? DAI levels are set at 500 ppm for Policy studies, but scientists are pushing the threshold down to 400 ppm or even lower.

The steadily growing debate over short and long term climate policy and the increasing scientific awareness of the scale of projected climate impacts, including the increasing risk of abrupt climate change, has focused increasing attention on Article 2 of the UNFCCC. The article%26#039;s objective describes efforts to achieve stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system.

Have you heard anything about this research? Isn%26#039;t this a major step in efforts to deal with global climate change?

he reckons 350 ppm to avoid major tipping points now, estimate has been creeping down over the last year from 450ppm.

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I think he%26#039;s right, unfortunately.

Thanks for the link.

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  Science is now discrediting green house gases ans now are stating that El Nino/ La Nina are the major causes for climate change.