Paris: impacts?

by Judith Curry
The world’s leaders are touting victory as a result of the COP21 deliberations in Paris.

But, victory over what, exactly?
Some newspapers called the Paris deal ‘historic’. James Hansen called it ‘bullshit’.
Here are a few good summary articles that I’ve spotted:

With regards to ‘victory over what?’, it doesn’t seem to be victory over dangerous human caused climate change.  The Huffpo article includes this insightful quote:  The accord ‘saves the chance of saving the planet.’
Bjorn Lomborg’s take
Lomborg has written prolifically from Paris over the last two weeks; the title of his op-eds rather speak for themselves:

JC’s take
I suspect that these are factors that will determine the overall outcome of this:

  • Climate change in the 21st century will be on the low end of the IPCC projections, and that we will not see anything close to 4C warming (unless natural variability somehow conspires to produce substantial warming).
  • Nearly all countries will act to promote their own economic self interest, with the possible exception of Europe and the U.S. (under a Democratic President).  Ronald Bailey argues that  Fast Growth Can Solve Climate Change.
  • People don’t really care much about climate change, as per this UN survey [link]
  • Development of new energy technologies (generation, transmission, storage) and possibly carbon capture and storage technologies are the only way to make progress on the Paris objectives.  The initiative spearheaded by Bill Gates looks like an important step in this direction.
  • Now that the world has declared ‘victory’ on the decades long process of getting a climate agreement, perhaps local communities and governments can start focusing attention and resources on reducing their current weather/climate vulnerabilities and improving their environmental quality.
  • Also, with the declared ‘victory’ and the loss of relevance of climate science, it will hopefully become ‘easier’ for scientists to obtain funding to research natural climate variability and challenge the IPCC’s consensus.

It remains to be seen whether the Paris agreement has a long tail with consequences that reverberate long into the future.  The most unpredictable aspect of this is the near term variability of the climate itself.  If the hiatus does survive the ‘warmest year’, with temperatures lower for the next decade than climate model projections, then the will to reduce carbon emissions may lessen.
In any event, it looks like climate change will be a significant issue in the U.S. Presidential election, which is the next big thing to watch.
 
 
 
 Filed under: Policy

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