Latest IPCC Findings Undermine Climate Change Claims

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“Excellent article which examines claims made that man made global warming is causing shrinking glaciers, species extinctions, lower crop yields, weather extremes and so on do not hold up to rigorous scrutiny. At the end the article it states “And that concludes the investigation. There is no good evidence linking human activities to any of the observed impacts of climate change listed in the Summary for Policymakers of the WG2 report. Obama et al. indeed seem to have got it wrong.”” Admin

 

Working Group 2 of the Intergovernmental Panel on Climate Change recently released the final version of its contribution to the IPCC Fifth Assessment Report: Climate Change 2014: Impacts, Adaptation, and Vulnerability. The WG2 report contains 1,731 pages of text, figures, boxes, footnotes and references, the first 832 of which list every negative impact climate change is having or could conceivably have on the Earth, its physical state, its ecosystems and the people who populate it. I doubt that anyone has ever read it from beginning to end. I certainly haven’t.

IPCC ReportBut the report’s mind-numbing length hasn’t stopped people from interpreting it the way they think it should be interpreted. And because no one bothered to read the fine print everyone thinks the IPCC is saying that the adverse impacts of human-caused climate change are already being felt:

Rising sea levels threaten every coastline. More powerful storms and floods threaten every continent. More frequent drought and crop failures breed hunger and conflict in places where hunger and conflict already thrive. On shrinking islands, families are already being forced to flee their homes as climate refugees. (Barack Obama)

Climate change is already having sweeping effects on every continent and throughout the world’s oceans … ice caps are melting, sea ice in the Arctic is collapsing, water supplies are coming under stress, heat waves and heavy rains are intensifying, coral reefs are dying, and fish and many other creatures are migrating toward the poles or in some cases going extinct.(New York Times)

The record rainfall and storm surges that have brought flooding across the UK are a clear sign that we are already experiencing the impacts of climate change. GuardianBut that isn’t what the IPCC is saying. A single sentence on page 4 of the Summary for Policymakers puts the IPCC’s conclusions in a different perspective:

Attribution of observed impacts in the WGII AR5 generally links responses of natural and human systems to observed climate change, regardless of its cause.That’s right. Regardless of its cause.

Working Group 2 isn’t claiming that these observed impacts are necessarily a result of human activities. They could equally well be the result of natural climate change – the IPCC makes no distinction. And if they are, then President Obama, the New York Times, the Guardian and all the others who believe that the adverse impacts of human-caused climate change are already being felt have got it wrong.

The key question here is clearly what fraction of the observed impacts of climate change that the IPCC identifies is human-caused and how much natural. Let’s see if we can put some probabilities on this.

Read More  Latest IPCC Findings Undermine Climate Change Claims.