Transcript TOPIC 1 全球暖化和氣候變化的簡介

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TOPIC 1
TOPIC 1
Introduction to Global Warming
and Climate Change
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全球暖化和氣候變化的簡介
Why are we doing these?
為甚麼我們要這樣做？
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What is the problem we are facing?
我們面臨甚麼問題？
-----------------------------------------------------Global Warming
全球暖化
Climate Change 氣候變化
Flooding
洪水
Extreme
Weather
極端天氣
Drought
乾旱
Heavy Rain
暴雨
2013-2014
Severe Drought in California
美國加洲嚴重乾旱
2014 Jan -30 degrees Celsius at 2013 Mar Tropical Storm Trami
Lake Michigan, Chicago
in Philippines
零下30度芝加哥密歇根湖
菲律賓熱帶風暴潭美
2014 Mar Heavy Rain and Hail
in Hong Kong 香港暴雨冰雹侵襲
2014 Feb Haze in Beijing
北京霚霾
Global Warming
全球暖化
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Definition: increase in temperature around the world mainly due to
increase concentration of greenhouse gases
定義: 溫室氣體增加，導致全球溫度上升
April, May, June, August
& September 2014 are the
hottest months on record ever!
2014年4月、5月、8月和9月是史上最熱！
What causes global warming?
甚麼導致全球暖化？
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CH4 Methane 甲烷
CO2 Carbon Dioxide二氧化碳
N2O Nitrous Oxide 氧化亞氮
O3 Ozone 臭氧
溫室氣體
GLOBAL
WARMING
全球暖化
Did you know?
你知道嗎？
-----------------------------------------------------Appropriate amount of greenhouse
gases is necessary
適量的溫室氣體是必需的
If greenhouse gases were not present, our
earth would be 33 degrees lower and
become too cold to live.
Greenhouse gases help to trap heat in our
atmosphere.
如果溫室氣體不存在的話，地球會比現在低
33度，變得不適合生存。溫室氣體有助於將
熱能保持在大氣層裡面。
BUT…但是…
We have too much greenhouse gases now!!!
我們有過多溫室氣體！！
What could happen if global warming
continues?
如果全球暖化持續下去會有甚麼發生？
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These places could be flooded…
以下地方將被淹沒…
Venice 威尼斯
Shanghai 上海
London 倫敦
Venice威尼斯
Taiwan 台灣
Los Angeles 洛杉磯
New York 紐約
Contributors to Global Warming?
全球暖化的元兇？
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Major Contributors to Global Warming
全球暖化主要元兇
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畜牧業是全球暖化的主要元兇，所排放的溫室氣體甚至多於汽車、火車、和飛機的總和。
The livestock industry is the greatest contributor to global warming, emitting more
greenhouse gas than all our cars, trucks, trains and planes combined.
Carbon Emission from Animals
動物的碳排放
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Animal feces generate nitrous oxide,
a greenhouse gas with 296 times the
warming effect of carbon dioxide.
Methane, which is emitted from cows
through belching and flatulence has a
global warming effect that is 21 times
more powerful than carbon dioxide.
Carbon Emission from Different Foods
不同食物的碳排放
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Carbon dioxide equivalent (kg)
produced per 1 kg of food
Process of food production involves CO2 emission. The carbon footprint of beef
or lamb production is 20 times more than production of fruits and vegetables.
What is the impact of your action?
你的行動有甚麼影響力？
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Go Green 1 Day
素食1天
減少碳排放 4.1公斤
Reduce CO2 by 4.1 kg
Turn off Air-Con for 2 Hours
關掉冷氣2小時
減少碳排放 1.4公斤
Reduce CO2 by 1.4 kg
Recycle a Paper
回收一張紙
減少碳排放 0.02公斤
Reduce CO2 by 0.02 kg
Please finish the worksheet
and take me home!
請完成工作紙及帶我回家！
End of Topic 1