I talked about geoengineering in my upper division Biology class in Ecology in the lecture on climate change and the carbon cycle. Then, I asked a multiple choice question about it on the exam. THEY ARE ALL GETTING IT WRONG! What have I done?! Even the really strong students are choosing this wrong answer (which I expected would be an easy one to dismiss; go figure). I don't know whether to laugh or cry. Or, both. (I also asked a rather out there extra credit question, below it.)
Very happy holidays to all of you!

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Jessica Gurevitch
Distinguished Professor
Department of Ecology and Evolution
Stony Brook University
Stony Brook, NY 11794-5245 USA
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