Will our reaction to climate change affect our freedom?
The current President of the EU is concerned that some proposals for fighting global warming will affect our freedom.
Britain's mainstream political agenda on climate change risks intruding into people's lives, threatens individual freedom and could turn voters off the fight against global warming, Mr Barroso warns.
As the architect of EU proposals on fighting climate change and measures to set tough binding limits and reductions for CO2 emissions, the Commission President's intervention is a particular setback for ideas given high-profile personal backing by the Environment Secretary, David Miliband, and the Conservative leader, David Cameron.
Mr Barroso hails cheap air travel as "a great thing for our civilisation" and expresses grave concerns over fashionable plans, floated by Mr Miliband, for personal carbon rationing.
He suspects that the proposals to restrict CO2 emissions from an individual's activities will lead to intrusive surveillance into private lives. "I do not see any need to establish these intrusive approaches that may reduce the freedom of our societies," he says.
"We have to find the right balance and I believe the right balance is not found if we start giving these kind of personal good or bad behaviour certificates to people."
Mr Barroso's views on tackling global warming also clash with Mr Cameron's plans to introduce green taxes and individual allowances on air travel should the Tories win the next election. "Cheap air travel is great for our civilisation. When we think now that people have the freedom to circulate instead of being confined to a small territory, it is great progress," he says.