Increases in the Greenhouse Gases · 温室气体的增加
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| Carbon dioxide/ˈkɑːbən daɪˈɒksaɪd/ | 二氧化碳 | èr yǎng huà tàn |
| absorbed/əbˈsɔːbd/ | 吸收 | xī shōu |
| Methane/ˈmiːθeɪn/ | 甲烷 | jiǎ wán |
| Nitrous oxide/ˈnaɪtrəs ˈɒksaɪd/ | 氧化亚氮 | yǎng huà yà dàn |
Why the gases are rising
- The natural greenhouse effect is steady and balanced.
- But human activity is adding extra greenhouse gases fast.
- More gas means more heat trapped, and a warmer planet.
- Different activities release different gases.
气体为什么在上升
- 自然的温室效应稳定而平衡。
- 但人类活动正在快速添加额外的温室气体。
- 更多的气体意味着更多的热量被困,一个更暖的地球。
- 不同的活动释放不同的气体。
Carbon dioxide
- Carbon dioxide 二氧化碳 is the biggest human greenhouse gas.
- Burning fossil fuels for energy and transport releases the most.
- Cutting down forests adds more, releasing stored carbon.
- It also removes trees that would have absorbed 吸收 CO2.
二氧化碳
- 二氧化碳(carbon dioxide)是最大的人类温室气体。
- 为能源和运输燃烧化石燃料释放最多。
- 砍伐森林添加更多,释放储存的碳。
- 它还移除本会吸收(absorb)CO2的树。
The biggest human source of carbon dioxide is… · 二氧化碳最大的人类来源是……
Burning fossil fuels for energy and transport is by far the largest human CO2 source. · 为能源和运输燃烧化石燃料是迄今为止最大的人类CO2来源。
Methane and nitrous oxide
- Methane 甲烷 comes from cattle, rice paddies, and landfills.
- Per molecule, it traps far more heat than CO2.
- Nitrous oxide 氧化亚氮 comes mainly from fertilizer use.
- These gases are smaller in amount but powerful in effect.
甲烷和氧化亚氮
- 甲烷(methane)来自牛、稻田和垃圾填埋场。
- 每个分子,它困住的热量远多于CO2。
- 氧化亚氮(nitrous oxide)主要来自化肥的使用。
- 这些气体量较小,但效果强大。
Which greenhouse gas comes from each source? · 每个来源产生哪种温室气体?
Match each human activity to the greenhouse gas it mainly releases. · 把每个人类活动匹配到它主要释放的温室气体。
Methane is released in large amounts by… · 甲烷被大量释放,来自……
Methane comes from cattle, rice paddies, and rotting landfill waste — a powerful greenhouse gas. · 甲烷来自牛、稻田和腐烂的填埋场废物——一种强效的温室气体。
Cutting down forests raises CO2 both by releasing carbon and by removing the trees that ____ it. · 砍伐森林通过释放碳并移除____它的树,来提高CO2。
Forests absorb CO2; cutting them releases stored carbon and removes a carbon sink — a double hit. · 森林吸收CO2;砍伐它们释放储存的碳并移除一个碳汇——双重打击。
A rising trend
- Since the Industrial Revolution, all these gases have climbed.
- CO2 in the air is now far higher than in all of human history.
- More people and more industry keep pushing the numbers up.
- The rise in greenhouse gases is driving global warming.
上升的趋势
- 自工业革命以来,所有这些气体都攀升了。
- 空气中的CO2现在远高于整个人类历史。
- 更多的人和更多的工业不断把数字推高。
- 温室气体的上升正在驱动全球变暖。
Some gases like methane trap far more heat per molecule than CO2. · 甲烷等一些气体每个分子困住的热量远多于CO2。
Methane traps much more heat per molecule than CO2, though there is less of it in the air. · 甲烷每个分子困住的热量比CO2多得多,尽管空气中它更少。
Select all · 所有 human activities that raise greenhouse gases. · 选出所有提高温室气体的人类活动。
Burning fuels, deforestation, and cattle all raise greenhouse gases. Planting forests lowers CO2. · 燃烧燃料、毁林和养牛都提高温室气体。种植森林降低CO2。
Not all greenhouse gases are equal. CO2 is the biggest contributor because we release so much of it. But methane traps far more heat per molecule — so even smaller amounts matter a lot. And deforestation is a double hit: it releases carbon and removes the trees that would have absorbed future CO2. Match each gas to its main source, and you know where to cut.
不是所有温室气体都相等。CO2是最大的贡献者,因为我们释放这么多。但甲烷每个分子困住的热量远更多——所以即使较小的量也很重要。而毁林是双重打击:它释放碳并移除本会吸收未来CO2的树。把每种气体匹配到它的主要来源,你就知道该在哪里削减。
A day's emissions:
- A power plant burns coal, and cars burn petrol — pouring out carbon dioxide.
- On farms, cattle belch methane and fertilizer releases nitrous oxide.
- Meanwhile a forest is cleared, releasing its stored carbon and removing trees that would have absorbed more.
- Every one of these adds to the greenhouse blanket — and each has a different fix.
一天的排放:
- 一座发电厂燃烧煤,汽车燃烧汽油——涌出二氧化碳。
- 在农场,牛打嗝排出甲烷,化肥释放氧化亚氮。
- 与此同时一片森林被清除,释放它储存的碳并移除本会吸收更多的树。
- 这些中的每一个都添加到温室毯子上——而每个有不同的解决办法。
Human activity is raising greenhouse gases fast. Carbon dioxide (from burning fossil fuels and deforestation) is the biggest. Methane (from cattle, rice, and landfills) traps more heat per molecule. Nitrous oxide comes from fertilizer. Deforestation is a double hit — releasing carbon and removing trees that absorb CO2. The rising trend drives global warming.
人类活动正在快速提高温室气体。二氧化碳(来自燃烧化石燃料和毁林)是最大的。甲烷(来自牛、稻和填埋场)每个分子困住更多的热量。氧化亚氮来自化肥。毁林是双重打击——释放碳并移除吸收CO2的树。上升的趋势驱动全球变暖。