Although only the first part of the United Nations' Climate Report 2007 will be officially unveiled in Paris tomorrow, a draft of part two was leaked to the press early this week.

The leaked draft, on impacts, adaptation and vulnerability caused by climate change, is alarming. For instance, between 1.1 and 3.2 billion people will suffer from water scarcity by the end of the century as the earth's temperatures rise by 2 C to 4.5 C.

And by the year 2080, an additional 200 million to 600 million people will grapple with food shortages and 7 million homes will be inundated by flood waters.