Global warming

全球暖化

Major components in the air:

空氣的主要成分：

Nitrogen 氮氣 (~78%)

Oxygen 氧氣 (~21%)

Argon 氬氣 (0.93%)

Carbon dioxide 二氧化碳 (~0.03%)

Major greenhouse gases:

主要溫室氣體

1. Carbon dioxide 二氧化碳 (CO₂)
2. Nitrous oxide 一氧化二氮 (N₂O)
3. Methane 甲烷 (CH₄)

Five major sources of greenhouse gases:

溫室氣體的五大主要來源：

1. Automobiles 汽車
2. Industrial process 工業過程
3. Fossil fuels extraction 化石燃料提出
4. Livestock farming 畜牧業
5. Landfills 堆填區

Ways to curb (stop) global warming

抑制全球暖化的方法

1. Use public transport / walk / ride the bike more 多使用公共交通工具/多走路/多踩單車
2. Switch off lights when they are not in use 關掉不用的燈
3. Buy energy-efficient electrical appliances 購買高能源效益的電器 
4. Use renewable energy 使用可再生能源
5. Plant more trees 種植更多樹木
6. Eat less meat 減少吃肉

etc.等等

Global warming is the phenomenon that describes

a fast but gradual increase

in the Earth's surface temperature.

全球暖化這個現象是指地球的表面溫度快而漸進地上升。

Other sources of greenhouse gases

溫室氣體的其他來源

• livestock wastes 家禽糞便
• deforestation 大面積砍伐森林
• burning of fossil fuels 燃燒化石燃料

Impacts brought by greenhouse gases：

溫室氣體所帶來的影響：

1. rise in sea levels 海平面上升
2. droughts and floods 干旱和洪水
3. more diseases 更多疾病
4. increase in death rate 死亡率上升
5. climate change 氣候變遷

Greenhouse effect 溫室效應

Words provided: greenhouse effect, atmosphere, temperature, warm, greenhouse gases, escapes

The Sun's rays _____ the Earth.

太陽的熱能令地球溫暖。

Some heat ________ into the space due to reflection.

有些熱能因為反射而散發到太空中。

However, some heat is trapped by ________________ in the _____________ and travels back to the Earth.

但是，有些熱能被溫室氣體困在大氣層裡，然後被反射回地球。

As a result, the global ______________ gets higher.

全球氣溫因而上升。

This is called the ______________________.

這是溫室效應。

Different trends of graph 圖表的不同趨勢：

1. Go up 向上 (inrease, rise, climb, grow)
2. Go down 向下 (decrease, drop, fall, decline)
3. Remain steady 保持平穩 (remain the same, stay the same)
4. Highest point 最高點 (peak, reach/at a peak)
5. Lowest point 最低點 (reach a low point, bottom out)
6. Fluctuate 起伏不定