And some countries also suffer tornadoes, hailstorms and even frost.

The devastating effects of these extreme weather conditions are called natural disasters.

What's to blame?

• Most scientists say they're actually the result of manmade climate change.

• They blame pollution from cars and factories for what they call global warming - a rise in temperature of the Earth's atmosphere.

• Africa now produces eight times more carbon dioxide - the main global warming gas - than it did 50 years ago.

• But the rest of the world is still responsible for 97% of it.