Bjorn Lomborg helps cool the warming debate:
R&D has been dropping worldwide since the early 1980s. If we increased this investment ten-fold, it would still be ten times cheaper than Kyoto, and probably hundreds to thousands of times cheaper than Tickell's proposal. The literature indicates that for every pound invested, we would do £11-worth of good. The reason: because when we all talk about cutting CO2, we might get some well-meaning westerners to put up a few inefficient solar panels on their roof-tops. While it costs a lot, it will do little and have no impact on Chinese and Indian emissions. But if we focus on investing in making cheaper solar panels, they will become competitive sooner, making everyone, including the Chinese and Indians, switch.