Page last updated at 13:49 GMT, Tuesday, 8 December 2009

US greenhouse gas health hazard declaration

Newsnight's Kirsty Wark is joined by John Prescott, Climate Change Rapporteur to the Council of Europe and Congressman James Sensenbrenner, leading Republican on the House Select Committee on Energy Independence and Global Warming, to discuss the implications of US President Barack Obama's declaration that greenhouse gases are hazardous to human health.

Broadcast on Monday 7 December 2009

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