Wind farms: 'No change' on policy, says David Cameron

There has been no change in the government's policy on renewable energy, the prime minister has said.

It comes after a Tory energy minister sparked a coalition row by claiming the UK had "enough" onshore wind farms.

John Hayes was slapped down by his Lib Dem boss Ed Davey after suggesting future projects would be blocked.

Mr Davey said he was in charge of energy policy and, echoing the PM, said the wind farm policy had not changed.

The BBC's Environment analyst Roger Harrabin reports.