If you're looking at this page, you're probably from a rich country. Your family may have one or more cars, perhaps you have holidays abroad, your house stays at a comfortable temperature automatically, your food comes (nicely packaged) from all over the world... and you depend for all this on fossil fuel if you think about it. And burning fossil fuels mean global warming. The poor who live in slums and shanty towns of big cities like São Paolo (Brazil), Nairobi (Kenya) or Dhaka (Bangladesh) have barely enough to eat, typically live in a one-room shack made out of scrap timber and corrugated iron sheet, have no water supply and no drainage (no bathroom and toilet). They use hardly any fossil fuel for they can't afford cars, heating or air conditioning. There are a lot of poor people but it isn't them who are causing global warming.