Activists stand with a banner before a march to demand action to address climate change in Doha

 
Activists stand with a banner before a march to demand action to address climate change in Doha
Activists stand with a banner before a march to demand action to address climate change in Doha December 1, 2012. United Nations (U.N.) climate negotiations will be taking place in the country until December 7. REUTERS/Mohammed Dabbous