1. Jaroslav Zavadil 7.A

2.  All the world warmer  The cause of global warming is the greenhouse effect

3.  The causes of the greenhouse effect are:  that people always go by cars instead of going by bike  Factories  Cows fart

4.  The Arctic is melting and there will be less places for the polarbear to live

5. We should do: Use bikes instead of cars By bio food Recycle Buy things by natural materials Use electricity saving bulbs We should not do: Cut down forests throwing rubbish on the ground

6.  We release too much CO2  We cut down the rainforest the trees exchange the CO2 into oxygen