They also talked about the impact of methane and nitrous oxide

他们也谈到甲烷和一氧化二氮
as contributing to the global warming.

同样促使了全球变暖
To put the relative contribution in context,

为了理清其中的联系
what they did is they said well let's take global warming,

在全球变暖中他们假设
let's take carbon dioxide and

二氧化碳
consider that one unit of contributor to global warming,

如果做为全球变暖成因中计量单位
then what would methane and nitrous oxide

那么甲烷和一氧化二氮
be in relationship to that number one?

在全球变暖成因中占多少个单位呢
You can see the methane has 23 times the potential to contribute

甲烷在全球变暖潜能中占比重是23个单位
to global warming and the nitrous oxides are multiples of that,

一氧化二氮则是甲烷的数倍
so the extent that agriculture is producing these things,

而农业却正在产生这些化合物
then we've got something to worry about,

这引起了我们的担忧