methane造句

What do we know about methane?

So which farm animals expel the most methane?

They could fart, but they shouldn't fart methane.

Once released into the atmosphere, methane could wreak havoc with the world's climate.

More likely, however, release of methane into the atmosphere will be gradual, but steady.

Once in the atmosphere, methane absorbs terrestrial infrared radiation that would normally move into outer space.

While oil poses undeniable ecological risks, methane (CH4) could prove daunting as well.

A very high excess of oxygen, methane, and nitrous oxides would certainly be suggestive of life.

The preceding Palaeocene epoch was also brought to an end, the rocks suggest, by a sudden release of methane.

Carbon monoxide offers a lot more energy per molecule to hungry microbes than methane does-but Mars's carbon monoxide level is stable and much higher than the claimed methane level.

One largely untapped source of energy, however, is the methane generated by cows on farms around the world.

Chlorine atoms can reduce the lifetime of atmospheric mercury gas, as well as greenhouse gases such as methane.

"The modeling of methane hydrate is frankly in its infancy," but it seems "robust to conclude" that mankind could "melt a significant fraction of the methane hydrates in the ocean," they wrote.

So N-Solv introduced purification equipment to separate methane from the propane before it is reused. The separated methane can also be used to heat the propane, further reducing energy costs.

They grow more slowly than feedlot animals and, as a result, emit more methane over their lifetime.

The problem with this method is that methane and nitrous oxide emissions fluctuate strongly in time and space.

The industry argues that it has vastly reduced the amount of fugitive methane with new technologies and upgraded pipe fittings and other equipment.

The presence of methane is intriguing because its likely origin is either present-day life or geological activity. Confirmation of either would be a major discovery.

Tap water, heating, air conditioning, hot water, coal gas, liquefied petroleum gas, natural gas, methane gas, coal/charcoal products for household use;

The evidence may be circumstantial at first — say, spectral bar codes of interesting molecules like oxygen, ozone, methane and water — and leave room for alternative interpretations.

The East Siberian Arctic Shelf, in addition to holding large stores of frozen methane, is an additional concern because it is so shallow.

Other research shows that frozen methane (a potent greenhouse gas) may bubble up out of the melting Siberian permafrost in volumes that would raise global temperatures by several degrees.

Recent estimates suggest the lakes are made of 80 per cent ethane, with slugs of propane, methane and acetylene, which could be a source of food for Titanian life, some researchers suggest.

As a result, the researchers' model suggests, the waters down-current of a large methane plume, especially in an ocean basin with poor circulation, could lose as much as 95 percent of their oxygen.

Greenhouse gas emissions from shale gas are predominantly down to two things: carbon dioxide produced when the gas is burned, and methane that leaks out while the well is being exploited.

This past month, there has been a flurry of news, speculation, discussion and debate concerning methane gas escaping from Arctic permafrost and its impact on the global climate system.