Letter: All hot air?
SIR - I am not convinced that recent climatic warming is ``man-made''. After all, any geologist will tell you we are nearing the middle of an interglacial period when temperature would be rising naturally. What, I wonder, made it rise the lastsix or more times? The 10,000 or so gigantic wind turbines it will need to reach the Energy Review wind energy target for 2020 will at best prevent less than 2% of our total CO2 emissions. Immeasurably small on a global basis, and good for nothing but US, German and Danish windpower firms.
DR JOHN ETHERINGTON Llanhowell, Pembrokeshire.