Global Warming - National Geographic

Quiz by: InmaCasado
Description: Global warming could do more than just melt polar ice. It could change our maps, and displace people from cities and tropical islands. [3 minutes aprox.]
High Intermediate
How much has the planet temperature risen during the last century?
What do the greenhouse gases do?
How does the Greenhouse effect begin?
What was the warmest year in measured history?
How much has Artic sea ice declined?
How can consumers help to reduce the impact of global warming?
For 2.5 million years the Earth's climate has fluctuated, cycling from ice ages to warmer periods. But in the last century the planet's temperature has risen unusually fast.