ABC News: "Disease spread by global warming could kill an extra 185 million people in sub-Saharan Africa by the end of the century and turn millions more into refugees unless rich nations take action now, a report said on Monday.

Christian Aid said rich developed countries had to end their dependence on fossil fuels and set aside large sums of aid to help poorer nations ride out the worst impacts of global warming and switch to energy sources like wind, solar and waves."Rich countries must take responsibility for having largely created this problem -- and cut CO2 emissions radically," the non-governmental organization said in a report "The Climate of Poverty: facts, fears and hopes."

"Climate change is taking place and will inevitably continue. Poor people will take the brunt, so we are calling on rich countries to help them adjust as the seas rise, the deserts expand, and floods and hurricanes become more frequent and intense."

Most scientists agree that global warming is due to burning fossil fuels for transport and power, and new calculations suggest that having risen by 0.6 degrees Celsius in the 20th century, global temperatures could surge three degrees by 2100.

Christian Aid said it based its estimate of 185 million deaths due to disease on figures from the United Nations and the Intergovernmental Panel on Climate Change. Global warming should allow carriers like mosquitoes to expand their ranges."