Greenhouse Effect & Global Warming by Rana M Kashif (M.Sc. Hons.) Agronomy
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Transcript of Greenhouse Effect & Global Warming by Rana M Kashif (M.Sc. Hons.) Agronomy
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PRESENTATION ON THE TOPIC:GREENHOUSE EFFECT &
GLOBAL WARMINGBY
RANA MUHAMMAD KASHIFB.Ed. In-service
GCET, NAROWAL,UNIVERSITY OF EDUCATION,
LAHORE, PAKISTAN2016
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Introduction
Greenhouse Effect Greenhouse gases Global Warming Causes Consequences Control Measures
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The Greenhouse Effect
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Who is responsible?
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Natural Causes
Some claim the sun is getting hotter. Also, the earth goes through natural cycles of climate change.
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Human Causes
Carbon dioxide (CO2) exhaust from cars and power plants.
Methane gas from waste
Deforestation
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Consequences of global warming
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Catastrophic weather such as hurricanes will increase.
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Melting polar icecaps will raise ocean levels; the Arctic Ocean could be ice free in summer by 2050.
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Heat waves, droughts, and wildfires will be more frequent.
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Up to 300,000 people a year will die – partly from the spread of tropical diseases.
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More than a million species worldwide could be extinct by 2050.
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Endangered
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Global sea levels could rise by more than 20 feet, devastating coastal areas
worldwide.
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The future of our coastal cities?
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Is it already too late?
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