Gwynne Dyer has posted a column talking about how work by researchers at Reading University have shown that trying to control global warming by injecting sulphur dioxide into the atmosphere would lead to a 30 percent decline in rainfall in most of the tropics.
While we might need geo-engineering techniques as stopgap measures, we are extremely unlikely to achieve anything without addressing the root of the problem. Climate scientist James Hansen has called for a global carbon tax with the proceeds to be distributed to all, a proposal he calls fee-and-dividend. I have posted a petition based on his proposal on Care2. You can view the petition (and hopefully put your name on it) at www.thepetitionsite.com/286/384/042/petition-for-a-referendum-on-a-global-carbon-tax/
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