This small weakening of the sun, however, has been outpaced by the rapid increase in CO2 levels from all our fossil fuel burning and tree-cutting.

虽然太阳活动降低了，但是我们燃烧化石燃料和砍伐树木引起了CO2的快速升高。

youdao

Scottish peat bogs hold three-quarters of all the carbon in British ecosystems - equivalent to around a century of emissions from fossil fuel burning.

苏格兰泥潭沼泽地吸收了英国生态系统中四分之三的泥炭——这相当于化石燃料燃烧一个世纪所排放的碳量。

youdao

The study projects that growing worldwide fossil fuel burning will boost global average ozone concentrations 50 percent by 2100 unless emissions are seriously restricted.

该项研究认为除非排放得到有效抑制，否则到2100年，增长中的全球矿物燃料燃烧将导致届时臭氧浓度增长百分之五十。

youdao

Many so-called greenhouse gases, such as carbon dioxide, come from burning fossil fuel such as oil or coal.

VOA: standard.2009.12.16

Synthetic fertiliser production and fossil fuel burning are responsible for this.

BBC: Leaving our mark: Fossils of the future

This nitrogen also bears the isotopic fingerprint of nitrogen derived through the inorganic processes of fertiliser manufacture and fossil fuel burning, and not of the way microbes do it.

BBC: Leaving our mark: Fossils of the future

Fossil fuel burning and fertiliser manufacture now take more nitrogen from the atmosphere than all of the planet's nitrogen-fixing microbes - and there are a lot of those bugs out there.

BBC: Leaving our mark: Fossils of the future