It Starts: The Fossil Fuels Endgame

From the Guardian:

Climate change is set to inflict “severe, widespread, and irreversible impacts” on people and the natural world unless carbon emissions are cut sharply and rapidly, according to the most important assessment of global warming yet published.

The stark report states that climate change has already increased the risk of severe heatwaves and other extreme weather and warns of worse to come, including food shortages and violent conflicts. But it also found that ways to avoid dangerous global warming are both available and affordable.

“Science has spoken. There is no ambiguity in the message,” said the UN secretary general, Ban Ki-moon, attending what he described as the “historic” report launch. “Leaders must act. Time is not on our side.” He said that quick, decisive action would build a better and sustainable future, while inaction would be costly.

Ban added a message to investors, such as pension fund managers: “Please reduce your investments in the coal- and fossil fuel-based economy and [move] to renewable energy.”

The report, released in Copenhagen on Sunday by the UN’s Intergovernmental Panel on Climate Change (IPCC), is the work of thousands of scientists and was agreed after negotiations by the world’s governments. It is the first IPCC report since 2007 to bring together all aspects of tackling climate change and for the first time states: that it is economically affordable; that carbon emissions will ultimately have to fall to zero; and that global poverty can only be reduced by halting global warming. The report also makes clear that carbon emissions, mainly from burning coal, oil and gas, are currently rising to record levels, not falling."

The BBC hones in on the specifics that also led what US media reports there were:

The unrestricted use of fossil fuels should be phased out by 2100 if the world is to avoid dangerous climate change, a UN-backed expert panel says.

The Intergovernmental Panel on Climate Change says in a stark report that most of the world's electricity can - and must - be produced from low-carbon sources by 2050.

If not, the world faces "severe, pervasive and irreversible" damage. The UN said inaction would cost "much more" than taking the necessary action."

Anything new here?  Mostly that the UN Panel is officially saying these things, in a reported vetted by governments--the process that typically waters down the final reports.  And by providing numbers in terms of years, it goes a long way in setting the agenda for the next and absolutely crucial international meetings next year.

It emphasizes what Bill McKibben wrote in another of his thoughtful reviews of the recent literature on the subject in the New York Review of Books this summer:

"We may be entering the high-stakes endgame on climate change. The pieces—technological and perhaps political—are finally in place for rapid, powerful action to shift us off of fossil fuel. Unfortunately, the players may well decide instead to simply move pawns back and forth for another couple of decades, which would be fatal. Even more unfortunately, the natural world is daily making it more clear that the clock ticks down faster than we feared. The whole game is very nearly in check."