WHAT COULD GO WRONG? Scientists dim sunlight, suck up carbon dioxide to cool planet, Reuters reports today:

Scientists are sucking carbon dioxide from the air with giant fans and preparing to release chemicals from a balloon to dim the sun’s rays as part of a climate engineering push to cool the planet.

Backers say the risky, often expensive projects are urgently needed to find ways of meeting the goals of the Paris climate deal to curb global warming that researchers blame for causing more heatwaves, downpours and rising sea levels.

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Keith’s team aims to release about 1 kilo (2.2 lbs) of sun dimming material, perhaps calcium carbonate, from a high-altitude balloon above Arizona next year in a tiny experiment to see how it affects the microphysics of the stratosphere.

This was something that John Holdren, Obama’s “Science” “Czar,” who in the 1970s, had a serious dalliance with radical eugenics, proposed in early 2009. Why couldn’t he convince the Obama administration to take him up on his risky environmental scheme, during a period when Democrats had control of all three branches of the federal government, and when James Hansen, NASA’s (since-retired) global warming guru was saying that Obama only had four years to save the earth?