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I am no climatologist, or atmospheric scientist (but then neither is Tim Flannery). However, I am a plant scientist and I did spend eight years doing research on climate change effects on plants. Flannery is a great publicist, and in that respect is doing a great job, but I'm not sure I've every heard many sensible ideas from him.
Look at that article, sulphur into the air will result in sulphuric acid rain, that would do the vegetation the world of good. CO2 into charcoal, how? The reason we get so much energy from fossil fuels is that it takes a lot of energy to get those carbon atoms to stick together. In other words we would need all the energy which we wasted in getting the CO2 into the air with our highly inefficient engines to get it back again. Where is that going to come from exactly?
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