April 1 (Reuters) - Following are impacts of global warming for Africa outlined in a draft U.N. climate report due to be released in Brussels on April 6.

The draft, to be discussed by scientists and government experts in the U.N.'s Intergovernmental Panel on Climate Change, is looking at the regional effects of warming:

AFRICA

-- Reductions in the area suitable for agriculture, and in length of growing seasons and yield potential, are likely to lead to increased risk of hunger.

-- An increase of 5-8 percent (60-90 million hectares) of arid and semi-arid land in Africa is projected by the 2080s under various climate change scenarios.

-- Current stress on water in many areas of Africa is likely to increase, with floods and droughts.

-- Any changes in the productivity of large lakes are likely to affect local food supplies.

-- Ecosystems in Africa are likely to experience dramatic changes with some species facing possible extinctions.

-- Major delta regions with large populations, such as the Nile and Niger rivers, are threatened by sea level rises.

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