SIR – Your change of tone on climate change is welcome (“Apocalypse perhaps a little later”, March 30th). You now have common ground with people who have long been dismissed as sceptics (actually something for any scientist to be proud of) or vilified as deniers. No one with a claim to be taken seriously has ever denied that our climate is constantly changing and that there has been a period of irregular warming since the late 19th century.
Increased levels of carbon dioxide, largely from fossil fuels, certainly play a part in this. What has never been clear is the extent of that influence. What has become more and more obvious is that current climate-change policy is an expensive waste of time, merely exporting emissions to developing countries and hastening the decline of the European economy.
Now is the time to invest in the development of economic green energy, rather than continue to shower taxpayers’ money on technologies that can never provide an affordable and secure power supply.