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UDA: Global Warming Liceo Scientifico “G. Galilei” Pescara A. S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

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Page 1: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

UDA: Global Warming

Liceo Scientifico “G. Galilei”Pescara

A. S. 2012 – 2013

Nicoletta Corradi 2^A

English Teacher: Prof.ssa Miscia Roberta

Page 2: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

• “Global Warming” is a word often studied at school, read in books or heard on TV… but what does the term mean exactly?

Page 3: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

Global Warming

• When the solar energy travels through the Earth’s atmosphere, several gases trap it, in particular water vapour, carbon dioxide, methane and ozone, which, while absorbing the energy from the sun, prevent the heat from escaping back into space.

Page 4: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

What happensThough only some energy passes back into space, most of it remains trapped in the atmosphere and causes the Earth’s heating.

Page 5: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

The Greenhouse effect• These gases are known as GREENHOUSE

GASES and their natural process is to maintain the Earth’s average temperature warm enough, making life on the globe possible. This is the GREENHOUSE EFFECT, which works exactly as a greenhouse.

Page 6: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

CAUSES OF GLOBAL WARMING• The main causes of global warming involve

human activities like: burning fossil fuels, cutting down and burning trees, etc.

Page 7: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

Clorofluorocarbons• Such activities generate a lot of carbon dioxide, which causes the imbalance of the greenhouse gases in the atmosphere. The use of hairsprays, fridges and plastic materials produce dangerous gases, called... CHLOROFLUOROCARBONS!

Page 8: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

CONSEQUENCES

• Global warming has negative effects on…• WEATHER!!• AGRICULTURE!!• SEA LEVELS!!• PLANTS AND ANIMALS!!• PEOPLE!!

Page 9: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

WEATHER:Global warming can change the amount of rainfall on earth with more and more frequent floods.

Page 10: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

FARMING• Extreme climate changes and hot

temperatures can also cause the desertification of the land; consequently farming becomes impossible.

Page 11: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

SEA LEVELS:• Increase in temperature is causing the melting

of glaciers, which are, though slowly, progressively increasing water sea levels, with the inevitable submersion of lands!

Page 12: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

PLANTS AND ANIMALS:• Due to the temperature increase, many plants

and animals will be no longer able to survive, so many species will rapidly become extinct!

Page 13: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

PEOPLE:

• Because of these inevitable climate changes, also our lives will be radically transformed. Let’s do something now! Preservation means survival. The life of our planet is our life, too.

Page 14: Liceo Scientifico G. Galilei Pescara A.S. 2012 – 2013 Nicoletta Corradi 2^A English Teacher: Prof.ssa Miscia Roberta

THE END