The UN's Intergovernmental Panel on Climate Change (IPCC) has been highlighting man's negative impact on the environment for years.<br /><br />But recent revelations that the IPCC got its calculations and methodology wrong has prompted the United Nations to launch an official investigation into whether climate change is reality or a myth.<br /><br />Al Jazeera's Laurence Lee reports.<br /><br />May 14, 2010
