Transcript Global Warming powerpoint

Global Warming
•What happens when you go into a greenhouse on a sunny day? It's hot, isn't it?
•That's because the glass in the greenhouse traps the heat from the sun.
•This gas carbon dioxide does the same in the earth's atmosphere.
•It acts like glass in a greenhouse
•The glass in the greenhouse keeps the plants inside warm, and the carbon dioxide
keeps the planet warm.
•Without it, we'd freeze.
•However! Too much of it means that we boil!
Because people are burning fuels with carbon in (that's oil, gas and coal which
we use in cars, aeroplanes, power stations and so on), all this carbon gets
dumped into the air, mixed with the oxygen we all breathe, and so adds to our
greenhouse gas problem. This means that the planet warms some more.
The ice of the poles will melt.
Some of it already is melting fast.
The Arctic sea ice gets less every year and
the great frozen continent of Antarctica
is losing ice too.
Other seas, like the North Sea, are warming too.
This means that fish which need colder waters
have to swim north and this can have bad
effects of both fishing and seabirds.
All the ice that melts will start to fill up the oceans and make them
overflow on land. More sea and less land is fine for penguins and for
fish, but it's no good at all for people and other animals that live on the
land. Some of the best land for growing food is also the most low-lying.
That means it will be flooded first. It also happens that some of your
biggest cities, like London will get flooded too.
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Then there's disease.
As the world warms, nasty diseases like
malaria are starting to spread because
insects like mosquitoes who carry the
disease like the warm weather!
Also, the more we fly places, the more
mosquitoes hitch a ride on the planes and
pass diseases on to other countries!
Storms ahead
• Also, people who study earth's climate have found
that as it warms up, the weather is going to get more
violent and unpredictable.
• Hurricanes, for example, will become more powerful - a big worry for people living in the south of the
United States and in the tropical Pacific or Indian
ocean areas like Bangladesh.
• Deserts are increasing and places like the Great
Plains of America will get drier.
• Rain will be heavier in other parts of the world so
there will be more floods.
• These things have already started to happen.
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STOP!
Take this opportunity to stop,
reflect and add to your
notes on Global Warming. Is
there any new information
you have come across?
The scientific research shows that Global Warming is DEFINITELY HAPPENING!
However, some people argue that it is not. Can you think why?
Many of the people who claim climate change is
not happening are those who use lots of fuel, who
make things like cars that use lots of fuel, or
actually get the fuel out of the earth: that's heavy
industry, carmakers and the oil, gas and coal
companies.
These are people who depend on other people using
lots of fuel if they are to continue making money.
It's not surprising that they don't think there is
any climate change. But it doesn't make them
right!
• The world is hotting
up.
• But it's not everyone that's causing Global Warming.
• Mostly it's people in rich countries – Europe, North
America and Australia.
• They are the ones with energy-hungry lifestyles
which guzzle fossil fuels.
• Poor people like those in most African countries, Asia
and Latin America can't afford to travel all over the
place in cars and planes, they don't have heating or
air conditioning in their homes or eat fancy food.
Many don't even have anything more to live in than a
one-room shack with no toilet, no kitchen, no running
water. These people are not the ones causing global
warming. Yet they will suffer!
• As for animals, they are innocent too.
STOP!
Talk to the person next to you
What do you think you
could do to prevent
Global Warming from
getting any worse?
1. TALK TALK TALK!
Talk with your friends, your teachers and your parents.
Get your parents and teachers involved!
You can also write to your country's politicians
telling them that you're worried about climate change
and why.
If enough people make a fuss, they have to do
something.
2.
Become an expert!
The more you know, the more likely it is you will make sensible decisions
which help the planet!
Why not find out your CARBON FOOTPRINT?
What's a Carbon Footprint? You can easily work out what your carbon
footprint is with Carbon Control's Carbonator.
3. Why drive when you can walk?! If your family has a car, get them to
use it less. Walk to the shops. Walking, running, skipping are all much more
fun than sitting in a boring un-cool car. If you need to travel further than
you can walk, use a bus or train if you can.
4. Save energy by not
always putting the heating
on.
You can put a
Jumper on if it’s cold
and instead of using air
conditioning or fans when its
hot, simply wear cooler
clothing!
5. SHOP LOCALLY! Why do you think this is important?
Make sure you check labels!
6. Learn to cook!
Home cooking is not only fun, it means you don't have to
drive to a takeaway or fast food restaurant. Result?
Less pollution.
If you make a garden, you can grow much of your own
food.
Composting your waste food means it doesn't have to be
trucked away to a landfill waste dump where it will cause
more pollution including methane, a powerful greenhouse
gas.
10. Reduce, reuse, recycle: Remember your
three Rs!
Reduce: the most important. If you don't buy so
much stuff in the first place, then you don't
need to reuse or recycle it.
Reuse whatever you can (like plastic
supermarket bags). If you can't reuse
something,
Recycle it!
11. Turn off and shut it!
• Turning things off may seem boring but leaving
lights, heating, air conditioning, computers, TVs
and stuff on when you don't need them wastes a
lot of energy. Turning them off saves money too!
• Leaving things on standby (like TVs, computers
and stuff) also uses a surprising amount of
energy.
• So you see climate change is not all gloom
and doom. There's plenty you can do.
• Please please remember: how you
choose to use energy affects all life on
Earth. The more energy you use, the more
the planet warms up. So please think
before you act... and turn off that light.
Everything you do like that helps a little!