Bjorn Lomborg in the New York Post:
As it is becoming obvious that political responses to global warming such as the Paris treaty are not working, environmentalists are urging us to consider the climate impact of our personal actions. Don’t eat meat, don’t drive a gasoline-powered car and don’t fly, they say. But these individual actions won’t make a substantial difference to our planet, and such demands divert attention away from the solutions that are needed.
Even if all 4.5 billion flights this year were stopped from taking off, and the same happened every year until 2100, temperatures would be reduced by just 0.054 degrees, using mainstream climate models — equivalent to delaying climate change by less than one year by 2100.
Nor will we solve global warming by giving up meat. Going vegetarian is difficult — one US survey shows 84 percent fail, most in less than a year. Those who succeed will only reduce their personal emissions by about 2 percent.