George Monbiot points out problems with Paul Crutzen’s proposal to mitigate global warming by injecting tons of sulphur into the stratosphere.
Challenging a Nobel laureate over a matter of science is not something you do lightly. I have hesitated and backed off, read and re-read his paper, but now I believe I can state with confidence that Paul Crutzen, winner of the 1995 prize for chemistry, has overlooked a critical scientific issue.