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Transcript of Global Warming
What is Global Warming? The earth is naturally warmed by rays (or radiation) from the sun which pass through the earth's atmosphere and are reflected back out to space again. The atmosphere's made up of layers of gases, some of which are called 'greenhouse gases'. They're mostly natural and make up of a kind of thermal blanket over the earth.
This lets some of the rays back out of the atmosphere, keeping the earth at the right temperature for animals, plants and humans to survive (60F/16C).
But if extra greenhouse gases are made, the thermal blanket gets thicker and too much heat is kept in the earth's atmosphere.
How did it happen? Wildlife would be strongly affected by Global Warming and as a change in temperature could change a lot, many animals would be endangered.
Also, many animals’ homes, such as penguins and polar bears, are melting so this is also a huge problem for wildlife.
As Antarctica and the Arctic provide a home or habitat for the animals that live in such cold regions, these animals are under threat from their homes being destroyed!
Wildlife If the Earth gets hotter, some of these important changes could happen:
Water expands when it's heated and oceans absorb more heat than land, so sea levels would rise.
Sea levels would also rise due to the melting of the glaciers and sea ice.
Cities on coasts would flood.
Places that usually get lots of rain and snowfall might get hotter and drier.
Lakes and rivers could dry up.
There would be more droughts making it hard to grow crops.
Less water would be available for drinking, showers and swimming pools.
Some plants and animals might become extinct because of the heat.
Hurricanes, tornadoes and other storms which are caused by changes in heat and water evaporation may become more common.
Effects WWF (World Wildlife Fund)is an organisation that helps raise awareness of global warming, sustainability and climate control.
The three key areas that they focus on are:
Conservation safeguarding the natural world
Tackling Climate Change the causes and effects
Sustainability changing how we live
WWF There are ways you can help cut greenhouse gases and help stop global warming. They are simple things, but can make a difference if everyone does them!
Re-cycle glass bottles, jars, newspapers and magazines and tin cans. Save them and take them to local re-cycling centres.
Re-use plastic shopping bags, don't get new ones
Persuade whoever does the gardening to have a compost heap.
Use paper on both sides. Try and buy products that don't use much packaging.
Give unwanted gifts and clothes to a charity shop.
Only fill the kettle up with the amount of water you need to boil that time.
Don't leave the TV or video on standby.
If you get lift to school in a car, take your mates along for the ride.
Ask whoever does your washing to use the machine at 40 degrees, this helps conserve power.
Switch lights off when you're not in the room
Get a clockwork mobile phone recharger
Cycle to places!
Have showers instead of baths. How you can help