An extra-special temperature record is being set in the US in the month of February. That is the ratio of new daily highs versus new lows from the various reporting locations. It has never been as lopsided for any one month as, so far, in February. The post also reports a number of other other notable records or observations due to the current heat wave.
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The conservatives in control of the US government are setting up for all-out war on environmentalism. Their annual political action conference (CPAC) produced speakers who made it clear that nothing will be held back with respect to removal of regulations that stand in the way of maximum economic growth. “Along with questioning federal climate change science, panelists also said they were skeptical of EPA research on everything from air pollution to pesticides.” There is nothing subtle about their message, or their plans to act accordingly. (Be sure to read what Paul Gilding has to say about this subject, and its existential importance, in yesterday’s Climate Letter.)
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How climate change is affecting biodiversity in the deep oceans. The increase in water temperature and decrease in food supply are both having a profound impact, that is sure to get much worse, and on top of that come the effects of rising acidification and lower oxygen content. The authors of a new study comment on what this all portends. “If we look back in Earth’s history, we can see that small changes to the deep ocean caused massive shifts in biodiversity.”
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Scientists predict further declines in the flow of the Colorado River. The reduction could amount to more than one-third by the end of this century, directly affecting the needs of 40 million people. “Record-setting temperatures, induced by climate change, are an important and underappreciated component of the flow reductions now being observed, drawing more moisture out of the Colorado River Basin’s waterways, snowbanks, plants and soil by evaporation and other means.”
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Interesting new research about Eastern Arctic sea ice concentration. The dataset studies show a rise in concentration between 1950 and 1975, followed by the declining trend that is still in effect. The authors attribute the rise largely to the cooling effect of sulphate aerosols, which were found to have peaked around 1980. In contrast, the warming effect of greenhouse gas has steadily increased, but was still relatively mild when the aerosols were most productive. I believe these observations could also be usefully applied to global temperature trends, but that possibility was not covered in this study, which was focused on revisions to the history of sea ice in the Eastern Arctic.
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A dozen new books and commissioned reports focus on the psychological aspects of climate change. They are all briefly reviewed in this post, indicating a considerable growth of interest in the subject.
Carl