New report for CO2 levels from Mauna Loa. There is no sign of change, as the average for the past year shows growth that was very much on track with what has been going on in recent decades. We are now running with gains that average about 2.2ppm per year, with no sign in place that emissions are about ready to peak. The so-called “danger limit” of 450ppm is now just 20-25 years away from being reached. Always keep in mind that the amount of emissions increase that is taken up by ocean and forest sinks, while averaging about half of the total, can vary quite a bit from year to year, affecting comparisons. The seasonal effect at the Mauna Loa location also can vary.
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Questions about the future of warmer oceans as a sink for excess CO2. The main process is explained very well in this post, along with evidence of actual weakening. It has long been known that cold water holds dissolved CO2 gas better than does warmer water.
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Who will win the Keystone battle? There will soon be a bill passed, Obama has said he will veto it, and some Democrats will have to decide whether or not to help override the veto. Call it a tossup. What about the U.S. public? Will it benefit if the pipeline is built? Here are four arguments that say the value is either negligible, or in one case, negative, assuming stepped-up production of the tar sands and their enhanced CO2 effect.
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More evidence about how rapid warming of the Arctic causes instability of the jet stream—with its so-called “polar vortex” effect. (We are seeing another such effect at this very moment.) Jennifer Francis has produced more evidence to back up her original claim, which so far has not had unanimous support from other scientists, but that may change.
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California’s clean power agenda. A very bold plan, and sure to get lots of attention. I believe the public will be cooperative, and that at least a few other states will follow suit.
Carl