"4. Global warming
● is caused by greenhouse effect
● climate changes and it is dangerous for people and animals
● the temperature and the sea level are rising
● icecaps are melting
● floods
5. Floods
● is caused by long heavy rains or whena lot of snow melt in the spring and water run down from mountains
● are damaged houses, bridges, roads and killed people and animals who don't run away in time
6. Ozone layer
● is in the atmosphere
● protects life on Earth from (against) ultraviolet rays – skin cancer is caused
● people protect to use creams, don't sunbathe along time,...
● It is caused by the use of gas (plynový) freons
● The hole is caused by the chemicals and it is getting larger.
7. Endangered species
● are hunting by people for skin, meat and money
● are dying out because the environment is wrong
● haven't got to drink and eat because people are cutting rain forest
8. Waste
● we should sort and recycle (use again)
● nuclear waste is dangered and radioactive
-they should take in space or another country
-dump into the sea
-burry into the ground
9. Earthquake
● is caused movement of the litospheric bords and explosions of volcanoes
● bulding fall down and everybody is in danger
● under the ocean can cause a big tidal wave
● volcanoes produce a lot of dust, smoke and lava
-pours out and burns everything
10. Smog
● we can't breathe
● is very unhealthy
● is in larger cities
11. Acide rain
● kills fish and trees
12. Another problems of today's world
● famine in Africa
● terrorism
● illnesses – people infected with HIV virus
● life in big cities – overcrowded, overpopulated"