The government's "schizophrenic attitude" to climate change is undermining investor confidence in low-carbon industries, MPs have warned.

The UK is committed to cutting emissions in half by 2025 but has said it will review that goal in 2014.

Climate Change Minister Greg Barker said a review was needed to ensure UK industry was not losing out by cutting much faster than the rest of Europe.

But the Environmental Audit Committee warned against sending mixed messages.

David Cameron says he wants his to be "the greenest government ever", but last week Chancellor George Osborne sparked anger among environmentalists when he told the Conservative Party conference the UK would cut emissions no faster than others in Europe, and environmental measures would not be taken at the expense of British business.

Earlier this year, the government signed up to the fourth in a series of tough "carbon budgets" - for the period 2023 to 2027.

Labour MP and committee chairwoman Joan Walley said the move suggested the UK really was determined to switch to a greener economy.

"Unfortunately, the government's somewhat schizophrenic attitude to climate change seems to be undermining that confidence," she said.