Today's campaigners against action on climate change are in many cases backed by the same lobbies, individuals, and organisations that sided with the tobacco industry to discredit the science linking smoking and lung cancer. Later, they fought the scientific evidence that sulphur oxides from coal-fired power plants were causing "acid rain." Then, when it was discovered that certain chemicals called chlorofluorocarbons (CFCs) were causing the depletion of ozone in the atmosphere, the same groups launched a nasty campaign to discredit that science, too.

Later still, the group defended the tobacco giants against charges that second-hand smoke causes cancer and other diseases. And then, starting mainly in the 1980s, this same group took on the battle against climate change.

When the emails and the IPCC error were brought to light, editorial writers at The Wall Street Journal launched a vicious campaign describing climate science as a hoax and a conspiracy. They claimed that scientists were fabricating evidence in order to obtain government research grants — a ludicrous accusation, I thought at the time, given that the scientists under attack have devoted their lives to finding the truth, and have certainly not become rich relative to their peers in finance and business.

But then I recalled that this line of attack — charging a scientific conspiracy to drum up "business" for science — was almost identical to that used by The Wall Street Journal and others in the past, when they fought controls on tobacco, acid rain, ozone depletion, second-hand smoke, and other dangerous pollutants. In other words, their arguments were systematic and contrived, not at all original to the circumstances.

Climate sceptics are recycled critics of controls on tobacco and acid rain:
http://www.guardian.co.uk/environment/cif-gre...e-change-sceptics-science