Air traffic growth set to outpace CO2 reduction efforts Carbon reduction efforts in the airline industry will be outweighed by growth in air-traffic, even if the most contentious mitigation measures are implemented, according to new research by the University of Southampton.
Ancient shellfish remains rewrite 10,000-year history of El Nino cycles
Piles of ancient shells provide the first reliable long-term record for the powerful driver of year-to-year climate changes. Results show that the El Niños 10,000 years ago were as strong and frequent as they are today.
Understanding the ocean
THE article by Graham Lloyd will likely leave a mis-impression with many of your readers concerning the substance of our paper that will appear in the Journal of Physical Oceanography (“Puzzle of deep ocean cooling”, 25/7).
We never assert that global warming and warming of the oceans are not occurring — we do find an ocean warming, particularly in the upper regions.
Contrary to the implications of Lloyd’s article, parts of the deep ocean are warming, parts are cooling, and although the global abyssal average is negative, the value is tiny in a global warming context.
Those parts of the abyss that are warming are most directly linked to the surface (as pointed out by Andy Hogg from the ANU).
Scientifically, we need to better understand what is going on everywhere, and that is an issue oceanographers must address over the next few years — a challenging observational problem that our paper is intended to raise.
Carl Wunsch, Harvard University and Massachusetts, Institute of Technology
Key point in new @yaleclimatecomm paper on US climate activism: “The threat posed by climate change should continue to be a component of climate change messaging, but should be accompanied – and perhaps even preceded – by messages on effective actions individuals can take.”
In @newyorker, @nijhuism points to studies showing story beats data in conveying climate change calamity. But African example problematic. Enormous implicit variability and clashing models mean local narratives of change/hardship are not valid reflection of greenhouse-driven climate change. See here, here and here. Sub-Saharan Africa response to greenhouse forcing still unclear:
(see @dotearth post)
#DivestHarvard blockades president’s office over fossil fuel investments. I like the divestment discussion because of the way it forces new examinations of terms - what is scope of a board’s “fiduciary responsibility” if your definition of “endowment” goes beyond stocks/bonds/ real estate…? A discussion of this here.
In @davidfolkenflik piece on @voxdotcom @upshotnyt I note limits of data-visualization, etc: ”I’ve had this sobering experience since about, well, almost 10 years. I’ve been writing about the social science of how people accept or reject information. You can have clear data, but people who are dug in on an issue just go out and select the data set that reinforce their predisposition…”
(I also said new efforts to convey the meaning behind numbers are vital, mind you, just not nearly sufficient on their own; didn’t make the cut.)