The Treasury Committee has called for a new ministerial post to co-ordinate the fight against global warming.
A cross-governmental approach to climate change was essential, said MP John McFall, the committee's chairman.
Mr McFall said: "It needs to be headed up by a minister - someone who can become an effective Champion of Climate Change across government."
The committee's recommendation was made in response to the Stern Review into the economic impact of climate change.
For further information read the Stern Report.