There are many who argue that corn ethanol should replace fossil fuel gas as the primary source for running cars.

许多人认为，玉米乙醇应该取代化石燃料气体，成为汽车的主要燃料。

youdao

Temperatures climbed more rapidly in the twentieth century as the use of fossil fuels proliferated and greenhouse gas levels continued to soar.

20世纪，随着化石燃料的大量使用和温室气体水平的持续飙升，气温上升得更快。

youdao

While fossil fuels—coal, oil, gas—still generate roughly 85 percent of the world's energy supply, it's clearer than ever that future belongs to renewable sources such as wind and solar.

虽然化石燃料——煤炭、石油、天然气——仍占世界能源供应的大约85%，但比以往任何时候都更清楚的是，未来属于可再生能源，如风能和太阳能。

youdao

Natural gas is considered the cleanest of the fossil fuels, the fuels created by plant and animal remains over millions of years.

VOA: special.2009.10.23

The gas is mainly methane. It produces half the carbon dioxide of other fossil fuels.

VOA: special.2009.10.23

Does measures seem to low emissions of greenhouse gases by raising the cost of gasoline, coal,natural gas and other fossil fuels.

VOA: standard.2009.12.12

While natural gas is a fossil fuel that emits carbon dioxide, tapping into the gas hydrates assessed in the study is not expected to affect global warming, said Brenda Pierce, coordinator for the USGS Energy Resources Program.

CNN: Study: Tap natural gas from Alaska's frozen areas

The demand for gas in power gen is increasing (coal to gas switching has been significant, and most new fossil power plants will be gas-fired).

FORBES: Driven by Oil Shale Economics, Natural Gas Prices Primed for Slow and Steady Rise

It also said emissions could be reduced by making wider use of low carbon fossil fuels like natural gas, and decarbonising exhaust gases from power plants.

BBC: Impact of global warming may be severe and wide-ranging