I'm often impressed by the level of discussion on these forums, but not today ;-)
The basics of global warming "have been endorsed by more than 45 scientific societies and academies of science, including all of the national academies of science of the major industrialized countries.[4] A small number of scientists dispute the consensus view." (Wikipedia http://en.wikipedia.org/wiki/Global_warming). If you don't believe this statement, and therefore think there's a decent chance it's happening, you are probably in the USA, where the level of noise generated by the opposition makes it very hard to listen to the majority.
China has relatively low emissions per person currently: http://www.carbonplanet.com/country_emissions. They are no doubt doing their best to catch up, as they think that they've a right to pass through the "basic industrial" phase before having to move on to the "advanced industrial" phase the US & EU, etc, are in, where emissions can be controlled. Difficult call for me.
I don't think anyone is likely to give much more money to Africa because of this. However that doesn't mean we can't discuss whether this is another example of the developed world screwing the third world. I think it probably is, though there isn't necessarily a solution until all African nations get their governance sorted out.
And BTW, you do need Africa for mineral resources, if nothing else, e.g. roughly 49% of diamonds originate from central and southern Africa (http://en.wikipedia.org/wiki/Diamonds#Production). Need shouldn't really come into it though.