( CNN ) -- Over the past four months `` Road to Durban : A Green City Journey '' has traveled south from the UK to the COP17 Conference in Durban , exploring efforts to reduce carbon emissions in urban centers . In the UK , Germany , Turkey and South Africa , three CNN reporters went in search of the best examples of how carbon cuts are being made in cities - with a particular focus on industry , transport , waste , architecture and the economics of renewable energy . But what are our governments doing in the battle against global warming ? CNN 's Robyn Curnow hosts a high profile panel debate with four leading thinkers in the environmental lobby . The questions are this : Why has it been so hard for countries to agree on the right way forward ? What is the responsibility of the developed and developing nations ? And finally , how economically viable will it be to create the sustainable cities of the future . The Panel : . -Professor Pan Jiahua , advisor to the Chinese Delegation . -Elliot Diringer , former Advisor to the Clinton Administration and part of the US Delegation at the signing of Kyoto Protocol . -Kumi Naidoo , native South African and Executive Director of Greenpeace International . -Mary Robinson - former President of Ireland , former UN High Commissioner for Human Rights and President of Mary Robinson Foundation - Climate Justice . Watch the show in December at the following times : . Wednesday , December 14 : 10:30 , 17:30 , . Saturday , December 17 : 05:30 , 19:30 . Sunday , December 18 : 12:30 . Saturday , December 31 : 12:30 . ( all times GMT )
December 's Road to Durban comes from COP17 in Durban . We will be hosting a series of panel discussions on subjects coming out of COP17 . Panelists will include former Irish President Mary Robinson and head of Greenpeace International Kumi Naidoo .