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GLOBAL WARMING
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H S E N A S E R U H R U H S I R I D T S E N A C I R R U H E I I G F Y E E E E E H T N N N I G S H T L L K N T N C G V C V C N I T E U O M O E R L V I L I E I N E M E E O P M E I I R I R P I G M
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DROUGHTS MELTING ICE
HURRICANES
EXTINCTED
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RISING SEA LEVELS
OZONE LAYER
ENERGY
HIGHTEMPERATURES
CLIMATE
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GLOBAL WARMING
WORDSEARCH
ANSWER KEY H S R I S E N A C I R R U H E I G F E I S H L C C I T O L E N E E E O I P G M C N Z D M S S P I V O S A D E E G I N T T E A R N R E E H T L A I O L G C E T T N A U N V U L M Y O I E R E E E R T L FLOODS DROUGHTS MELTING ICE HURRICANES EXTINCTED SPECIES
RISING SEA LEVELS
OZONE LAYER HIGH TEMPERATURES ENERGY
CLIMATE ENVIRONMENT E M N R D X S S T Y G R E N E Experts in climatology and other scientists are
extremely concerned about the changes to our
climate. Admittedly, climate changes have
occurred on our planet before. For example: there
had been several ice ages or glacial periods.
These changes were different from the modern
ones because they occurred gradually and
naturally. The current changes aren’t the result of
natural causes, but of human activity.
Furthermore, the changes are occurring
alarmingly rapid.
The major problem is perhaps, that the planet is
warming up. According to some experts, this
warming, known as global warming, has been
occurring in the last 10,000 years. The implications for the planet are very serious. Rising global
temperatures could give rise to such ecological disasters such as floods and droughts. This
could have a harmful effect on agriculture.
This unusual warming of the earth has been caused partly by so- called greenhouse gases,
such as carbon dioxide, being emitted into the atmosphere by car engines and modern
industrial processes, for example. Such gases, not only add to the pollution of the atmosphere,
but also create a greenhouse effect, by which the heat of sun is trapped. This leads to the
warming up of the planet.
Politicians are also concerned about climate change and there are now regular meetings on the
subject, attended by representatives from many of the world’s industrialized countries. In Kyoto,
Japan in 1997, it was agreed that the most industrialized countries would try to reduce the
volume of greenhouse gas emissions and were given targets for their reductions.
It was also suggested that more forests should be planted to create so- called “sinks” to absorb
greenhouse gases. At least part of the problem of rapid climate change has been caused by too
drastic deforestation.
Sadly the targets are not being met. Even more sadly, global warnings about climate changes
are often still being regarded as scaremongering.
Answer these questions
1. What climate changes have taken place before the present time?
…………………………………………………………………………………………………………
2. What are the main differences between modern climate changes and the ones that
occurred in the past?
…………………………………………………………………………………………………………
3. What were the agreements reached in the summit in Tokyo?
…………………………………………………………………………………………………………
4. Which suggestions were made and why?
…………………………………………………………………………………………………………
Express your opinion: Is global warming true or false? Give reasons.
………………………………………………………………………………………………………………
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Natural
N
dis
sasters
Number
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the
e pictures
1 earthquake – 2 fo
orest fire –
o eruption – 4 flood 5
3 volcano
draught – 6 tornado – 7 tsunami
Name:____________ Class____________ Date__________
Light from the Sun
1. What type of radiation does
the sun emit?
The Greenhouse effect
What gases in the atmosphere
This is because these gases
stop the heat from escaping?
(absorb/reflect/transmit) the heat energy?
i.
ii.
iii.
iv.
Which gas has increased due to humans?
What human activities have led to an increase in this gas?
2. The radiation passes through the Earth’s
___________ ___and hits the Earth’s surface.
Greenhouse gases
i.
ii.
iii.
3. When radiation passes through something this means
that it is
absorbed / reflected / transmitted
Climate
change
What is the difference between the terms
‘climate’ and ‘weather’?
4. When the radiation hits the Earth’s surface some of it
bounces back into space. This means it has been
absorbed / reflected / transmitted
How has the Earth’s climate changed over the last 150 years?
5. Some of the radiation that hits the Earth’s surface does
not bounce back. This means it has been
absorbed / reflected / transmitted
6. This radiation warms the Earth’s surface and the heat energy
is radiated back into space.
This is called ________________ radiation.
What negative effects might this have?
What is being done to prevent climate change?