Reuters: African nations at the sharp edge of climate change must unite in talks to strike a new deal in Denmark at the end of 2009 on a successor to the Kyoto Protocol, a conference heard on Thursday. “In the forthcoming negotiations African leaders should speak with one voice,” former Irish President Mary Robinson told the two-day African Climate Change Forum in Rwanda. “This bargaining power will get the West to commit on targets of carbon emission reductions and to fund adaptation …