An Inconvenient
Truth
Global
Warming
1
What
Causes
Global
warming?
2
3
4
5
6
7
Global warming facts
8
Glaciers melting and the ice
shelf disintegration
9
Ice shelf disintergation
Photos: National Aeronautics and Space Administration (NASA)
10
Rising global temperatures will speed
the melting of glaciers and ice caps,
and cause early ice thaw on rivers and
lakes.
11
Ocean warming, sea-level
rise and coastal flooding
Flooded 6M
Flooded 15M
Flooded 25M
12
Downpours and
flooding
Warmer water in
the oceans
pumps more
energy into
tropical storms,
making them
more intense and
potentially more
destructive.
13
Spreading disease
Disease-carrying
mosquitoes are
spreading as
climate shifts allow
them to survive in
formerly
inhospitable areas.
14
Droughts and wildfires
Warmer temperatures could also increase
the probability of drought and increase the
risk of wildfires
15
Plant and animal range shifts
and population changes
16
Ecosystem
shifts and
species die-off
More than one
million species
could be
committed to
extinction by 2050
if global warming
pollution is not
curtailed.
17
WHAT We Can Do?
18
What can we do to
help saving energy?
19
Match the sentence halves in the
house (1-6) with the ones below (A-F)
A.
B.
C.
D.
E.
F.
- you will waste energy by boiling too much water.
Only boil the water you need.
- you will use 75% less energy. And remember –
always turn off the light when you leave a room.
- your parent won’t have to take you in the car.
Cars make a lot of carbon dioxide.
- you will save energy because you won’t have to
heat as much water.
- your fridge will take at least three minutes to cool
down again. This uses a lot of energy.
- you will make too much carbon dioxide. Wear
more clothes to keep warm.
20
Word check
What is it in your language?
21
Global warming is happening
because we are putting too much
carbon dioxide into the air. Most
of the carbon dioxide comes from
cars, factories and homes.
22
What causes global
warming?
23
The sun heats the earth.
Carbon dioxide traps the heat so
it can’t leave the atmosphere.
When there is a lot of carbon
dioxide it traps more heat, so the
earth is getting hotter.
24
How does carbon dioxide
make the earth warmer?
25
The earth is already warmer than it
was 100 years ago. The icecaps in
the North Pole are starting to melt
because of the higher temperatures
and the sea levels are rising. This
means that there will be floods in a lot
of towns and cities.
26
Why does it matter that
the earth is getting hotter?
27
Some areas will become drier,
like North America, Brazil and
Russia. These places grow a lot
of the world’s food. If the
temperature rises by only one or
two degrees, it will be too hot to
grow crops in these countries.
28
What other problems
are there?
29
We all need to save energy so that
we make less carbon dioxide. Don’t
do anything that wastes energy.
Remember to turn off lights when you
leave a room. If you can, walk to
school or use your bike. Don’t ask
your parents to take you in the car.
30
What can we do？
31
1.
2.
3.
4.
5.
What causes global warming?
How does carbon dioxide make the earth
warmer?
Why does it matter that the earth is
getting hotter?
What other problems are there?
What can we do?
32
Global warming is happening
because we are putting too much
carbon dioxide into the air. Most
of the carbon dioxide comes from
cars, factories and homes.
33
The sun heats the earth.
Carbon dioxide traps the heat so
it can’t leave the atmosphere.
When there is a lot of carbon
dioxide it traps more heat, so the
earth is getting hotter.
34
The earth is already warmer than it
was 100 years ago. The icecaps in
the North Pole are starting to melt
because of the higher temperatures
and the sea levels are rising. This
means that there will be floods in a lot
of towns and cities.
35
Some areas will become drier,
like North America, Brazil and
Russia. These places grow a lot
of the world’s food. If the
temperature rises by only one or
two degrees, it will be too hot to
grow crops in these countries.
36
We all need to save energy so that
we make less carbon dioxide. Don’t
do anything that wastes energy.
Remember to turn off lights when you
leave a room. If you can, walk to
school or use your bike. Don’t ask
your parents to take you in the car.
37
Assignment
Preview “The Ocean in Trouble” (p.156 –
160) in the textbook.
Find a partner and discuss following
questions:
1.
2.
a.
b.
Is fishing important in Taiwan?
Do you know of any problems for the fishing
industry?
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Thank you for joining
the class!
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