Michael Mann Is a big-name scientist and a true veteran of the climate wars. Here, for Scientific American, he tells his own story beginning with the “hockey stick” days and makes a number of observations about the way climate change has developed over the last twenty years. He notes that far from being an exaggeration, climate model projections have proved overly conservative, and gives some examples.
https://blogs.scientificamerican.com/observations/earth-day-and-the-hockey-stick-a-singular-message/
https://blogs.scientificamerican.com/observations/earth-day-and-the-hockey-stick-a-singular-message/
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Ozone pollution (smog) in the US shows significant increases when temperatures rise. A new report from the American Lung Association provides statistical evidence of the rise in health problems that result from the reduced air quality caused by warmer temperatures within many large population centers. In a city like Los Angeles, “Warmer temperatures create conditions conducive to smog formation and lead air to stagnate, keeping dirty air from leaving a given area.” I would suppose that no city in the world is exempt from that phenomenon.
http://time.com/5245779/climate-change-air-pollution-health/
–The main report from the ALA, which you can read here, places emphasis on the need for the Clean Air Act to be kept intact and vigorously enforced, noting that the Act helps to abate climate change along with reducing unhealthy gas and particle content.
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A new study raises questions about the way higher atmospheric CO2 levels benefit plant growth. Quite a few complications get involved, depending on the kind of plant you have in mind. Many food crops that do well for awhile end up being negatively affected when rising temperatures come into play. Other kinds of plants tend to thrive more from the extra heat than they do from the CO2. Experiments lasting twenty years came up with this information.
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How climate change affects the ocean’s food chain. This post is based on a recent study that explains how changes in ocean circulation caused by changing water temperatures results in a change in the way phytoplankton are distributed across the globe. Since phytoplankton create most of the nutrients required by marine animal life that means some of the world’s best fisheries will end up with an undersupply.
https://phys.org/news/2018-04-climate-ocean-food-chains-fish.html
https://phys.org/news/2018-04-climate-ocean-food-chains-fish.html
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A new analysis of the effectiveness of a carbon tax with proceeds distributed back to the public. Once again the conclusion is that it would make a real difference in greenhouse gas emissions and, if set up properly, would create other benefits for most of society. Eleven research teams at different institutions carried out the research using a common set of starting assumptions and policies. Even a $25-per-ton initial tax would be adequate to meet the U.S. pledge in Paris for 2030.
http://www.theenergycollective.com/energyatmit/2431387/carbon-taxes-could-make-significant-dent-in-climate-change-study-finds
http://www.theenergycollective.com/energyatmit/2431387/carbon-taxes-could-make-significant-dent-in-climate-change-study-finds
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