Now the UN Climate Change Conference is underway in Copenhagen. Over 10 days the world is gathering to work out how to save the climate. But what is it that is at stake? Why is the earth’s average temperature changing? How can you yourself help to curb climate change? In the big climate quiz created by the Swedish Presidency of the European Union (se2009.eu), you can test your knowledge and see how your score measures up. And perhaps also learn a thing or two.