A new study tells about “marine snow” and how it helps to cool the planet over time. This natural way of removing and sequestering CO2 from the atmosphere is a vital component of the ocean sink. That leads to concerns about the rising rate of ocean acidification. “We need to understand better how the ocean’s capacity to store CO2 will be affected by future warming…..Ocean acidity has increased by 30 percent since 1800, reducing the capacity of the ocean to store away carbon.”
https://phys.org/news/2019-03-marine-cools-planet.html
https://phys.org/news/2019-03-marine-cools-planet.html
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–Here is another current study that has specific information about the deadly effect of acidification on shelled microorganisms in the Southern Ocean:
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Review of a new “landmark” report from the UN on manmade pollution and environmental damage. It presently accounts for a heavy disease burden and about 9 million premature deaths each year, mostly occurring in poorer nations. An association is made with effects attributed to climate change that are worsening the underlying conditions: “As greenhouse gas emissions continue to rise amid a preponderance of droughts, floods and superstorms made worse by climbing sea levels, there is a growing political consensus that climate change poses a future risk to billions.”
https://phys.org/news/2019-03-environment-global-deaths-disease.html
https://phys.org/news/2019-03-environment-global-deaths-disease.html
–It’s not just poor nations that are affected. The Guardian has a story about research that attributes 800,000 premature deaths each year in Europe to the effects of dirty air. This study also confirmed the calculations of research published last September stating that there were 8.8 million early deaths per year around the globe just from outdoor air pollution, which was double previous estimates.
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Dramatic changes in precipitation patterns are being detected and are likely to continue, with adverse effects on key crop production. “The study warns that up to 14 percent of land dedicated to wheat, maize, rice and soybean will be drier, while up to 31 percent will be wetter.” The rate of change can be reduced if emissions growth is curbed. This work highlights the urgent need to set plans for adaptation, which in many cases will be costly and time consuming.
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A professor of environmental physiology has written an important paper about the impact of heat waves on humans and wildlife. Jonathan Stillman has gathered information from over 140 scientific studies on the topic and composed a review of the results. “Summertime is quickly becoming a deadly season for life on Earth,” he wrote in the paper. “We can’t say it’s going to happen next year…..But if we continue on the current carbon trajectory, by the end of this century we’re going to see heat waves that will dwarf those that have killed huge numbers of people and wildlife.”
–Open access to the full study:
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Katharine Hayhoe, a climate scientist who makes frequent public presentations about climate change, has written a piece for The Oprah Magazine describing seven different ways that individuals can make a difference. Her imaginative thoughts go well beyond the things that are routinely mentioned.
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A new version of socialism has taken root in a very red state (Think Progress). Joe Romm, a climate scientist and staunch liberal, loves to needle his Republican friends.
Carl