Reuters: Industrialised countries have a moral responsibility to help Africa mitigate the effects of climate change, Kenya’s Nobel laureate Wangari Maathai said on Friday. "For the global South, especially Africa, environmental issues are not a luxury," the environmental activist said in an article in Kenya’s Business Daily newspaper on the final day of climate change talks in Bali. "Arresting the world’s warming and protecting and restoring our natural systems are …