A unique observation related to the global circulation of ocean water (Phys.org). Massive amounts of warm Pacific Ocean water regularly pass through narrow straits into the Indian Ocean and thence to the Atlantic, but not always. New findings show how this is sometimes blocked, and why future changes may have widespread consequences.
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–From the study, a view of where the bottleneck appears:
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A close look at what the planet will be like if warmed by a total of 4C (The Guardian). The author of this rather disturbing piece, Gaia Vince, is a British environmental journalist who is thoroughly well-informed on what today’s climate scientists are saying and thinking. “Experts agree that global heating of 4C by 2100 is a real possibility. The effects of such a rise will be extreme and require a drastic shift in the way we live.” If you remember the book, Six Degrees, by Mark Lynas, this article can serve as a brief and proper update.
–Repeat of a post from Climate Letter #1406, April 17, about the current views of many scientists as reported in a leading journal:
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A lack of rain in North Korea poses a threat of famine (circle of blue). It’s a chronic problem for this unfortunate land, compounded by central mismanagement. “If precipitation doesn’t increase, rainfall totals will likely be the lowest ever recorded in North Korea for January through May…..an estimated 10.1 million people, about 40 percent of the population, are facing severe food insecurity.”
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Earthworms are moving northward, releasing large quantities of carbon from the forest floor (New York Times). “The world’s boreal forests have been largely earthworm-free since the last Ice Age. But as invaders arrive and burrow into the leaf litter, they free up carbon and may accelerate climate change.” There is much uncertainty over the total impact, but scientists have found enough evidence to make them worried.
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Corporate America is becoming more active in support of stronger climate policies (Axios). That should finally put some real pressure on Republicans to begin steering a new course.
Carl