"Climate change does not affect everyone equally," says Wangari Maathai, who won her Nobel Peace Prize in 2004 for her work linking the environment, peace and sustainable development, while promoting democracy in Kenya. "Here in Africa, we are paying a high price for a rapidly changing climate - more droughts, food crises and it is set only to get worse. We can see how climate change is already aggravating the competition for resources and the economic stability all over this continent."