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Time is quickly running out for the Mekong delta (Scientific American). According to new research, “A stunning 12 million people could be displaced by flooding in Vietnam’s Mekong Delta within half a century. The results…show the Mekong’s elevation over sea level averages just 0.8 meter, which is almost two meters lower than commonly quoted estimates.” The combination of subsidence and sea level rise keeps eating away at that gap. There are implications for other low-lying deltas around the world.
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Preview of a coming UN report concerning destructive changes in the world’s oceans (Phys.org). This 900-page scientific assessment is comparable to the recent UN publication dealing with forest management and the global food system. The principal conclusions: “Destructive changes already set in motion could see a steady decline in fish stocks, a hundred-fold or more increase in the damages caused by superstorms, and hundreds of millions of people displaced by rising seas.” This story has outlines of just a few specifics, with the final release being a month away.
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Toxic algae has become a deadly menace, accelerated by climate change (The New Republic). The stuff thrives in warm, nutrient-rich conditions. Now, “scientists predict that warming waters coupled with fertilizer and manure washing off farm fields during heavier and more frequent rains may accelerate the frequency and intensity of harmful algal blooms in freshwater.” In the US, this year is among the worst.
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The outlook for rainfall in the Brazilian Amazon is not expected to be of much help for the next few weeks (Reuters). “While Brazil’s government has launched a firefighting initiative, deploying troops and military planes, those efforts will only extinguish smaller blazes and help prevent new fires, experts said. Larger infernos can only be put out by rainfall. The rainy season in the Amazon on average begins in late September and takes weeks to build to widespread rains.” The current 15-day forecast is at or below average for many critical areas.
–One forestry expert says the worst is still to come (The Guardian):
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The agriculture industry effectively kills off many recommendations of the IPCC that address climate change (WIRED). The author of this story, Timothy Wise, has written a whole book on the subject, just published. UN climate proposals “seem like common sense, yet little seems to change. The reason is clear: the corporate interests threatened by such reforms are large and dominant, and they use their undue influence over governments to prevent progress.”
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Another politician, like Brazil’s president Bolsonaro, gives strong support to corporate interests and has no interest in protecting rainforests (EcoWatch). “The move, according to the Post, would affect more than half of the Tongass National Forest, “opening it up to potential logging, energy, and mining projects.” (Tongass, in Alaska, covers 16.7 million acres and is uniquely untouched among those outside the tropics.)
Carl