The bigger your carbon footprint the bigger your moral duty.

碳排放量越大，道德责任就越大。

Who cares? It's time to downsize, minimize my carbon footprint.

谁在乎啊? 我是时候过过低碳生活了。

Will the U.S. have a law limiting carbon dioxide?

美国会出台限制二氧化碳排放法律？

Now to climb I use a carbon fiber, special custom shoe.

现在去爬山话，我会穿用碳纤维特别定制鞋子。

It's called activated charcoal or activated carbon.

它叫做活性炭，或者活性碳。

For a start, all animals, such as cows, pigs and sheep, always gas limed methane, which is the second most common green house gas after carbon dioxide.

首先，所有动物如牛、猪、羊都会排出甲烷气体，它是排在二氧化碳之后第二大常见温室效应气体。

Heating this chemical compound drives off carbon dioxide gas leaving calcium oxide.

加热这种化合物会驱除二氧化碳气体，留下氧化钙。

The strategy also aims to ensure that carbon in woody material removed from the forests is locked away in the form of solid lumber or burned as biofuel in vehicles that would otherwise run on fossil fuels.

加州策略另外一个目是确保从林地清除树木所包含碳以实木材质得到储存，或者用于机动车作为生物燃料燃烧，否则机动车会依靠化石燃料。

Rocks like plagioclase and olivine that contain calcium and magnesium naturally absorb carbon dioxide to become limestone or dolomite.

比如含有钙和镁石和橄榄石可以自然吸收二氧化碳转变成石灰岩和白云石。

That's why they invented the mail system and carbon paper and onion skin copies.

反正现在有邮政系统，还有复写纸和拷贝纸。

Again, I can't stress the dangers of carbon monoxide poisoning which is absolutely avoidable.

再说一遍，我一再强调一氧化碳中毒危险性，这是绝对可以避免。

Carbon dioxide and sulphuric acid clouds is what makes up my atmosphere, and for this, I am very proud.

二氧化碳和硫酸云是我大气组成成分，我为此非常骄傲。

When it comes to forming compounds, no element comes close to carbon, which comes from a Latin word for coal.

没有元素比碳构成化合物最多。碳来源于拉丁文意思是煤。

A carbon emission is a gas produced by the burning of carbon.

碳排放是指碳燃烧后产生气体。

The lines it's built have drastically shortened journey times, improved safety, reduced carbon emissions, and allowed many Chinese people from rural or less developed areas to access to the country's massive cities.

高铁大大缩短了旅途时间，提高了安全性，减少了碳排放，方便许多来自农村或欠发达地区人口能够进入中国大城市。

Yeah, but you really...-Uh, Why is he wearing carbon fiber underpants?

是，你们真不用...-那个，他为什么穿着碳纤维内裤？

So instead of developing countries being unfairly burdened with the carbon debt of richer nations and somehow expected to forgo that same path to growth, we are helping those countries deliver their own fast track to clean growth.

因此，与其让发展中国家不公平地背负较富裕国家碳债务，并以某种方式期望它们放弃同样增道路，不如帮助这些国家步入清洁增快速通道。

As the trees burn, they release carbon dioxide.

树木燃烧时释出二氧化碳。

Best of all, it does not emit harmful carbon dioxide into the atmosphere.

最好一点是，Kayoola不会向大气释放有危害二氧化碳。

It really would have reduced the country's carbon footprint.

这会大大减少美国碳排放量。