Our atmosphere is like the roof of a greenhouse. It lets heat from the sun in to warm the Earth. Bad gases are trapping more heat, warming the planet.
Pollution from burning fossil fuels increases the amount of C02 - carbon dioxide in our atmosphere.
The gases that are seen above help trap more heat in our atmosphere.
As the greenhouse effect gets worse, the Earth's temperature rises yearly, making 2016 the hottest on record so far.
Climate change has rates of drought increasing in hotter areas of the planet.
Climate change has resulted in an increase in flooding around the world.
Polar bears are endangered due to melting polar ice. They have to swim up to 100km to find seals, using the sea ice as a hunting platform. As a result 8 out of every 10 polar bears are considered endangered.