Sentences with phrase «emitting large amounts of carbon»

Scientists have already speculated that volcanic cycles on land emitting large amounts of carbon dioxide might influence climate; but up to now there was no evidence from submarine volcanoes.

Most electricity in the United States is generated at power plants that run on coal and natural gas — fossil fuels that contribute significantly to global warming by emitting large amounts of carbon dioxide.

Beyond local impacts like bad air quality and ecological issues, wildfires also emit large amounts of carbon dioxide, rather than those trees sucking carbon out of the air.

Fairbanks, AK - Scientists have long believed melting permafrost emits large amounts of carbon - rich greenhouse gases like methane and carbon dioxide to the atmosphere resulting in a warming climate.

The (arithmetic) average emission factors obtained from the individual samples (assuming complete combustion)(Table FE4)(10) confirm the long - recognized finding that anthracite emits the largest amount of carbon dioxide per million Btu, followed by lignite, subbituminous coal, and bituminous coal.

Not exact matches

Consequently, large amounts of carbon have been emitted into the atmosphere in the form of CO2 contributing to global warming.

And, if it were found in large enough quantities, some experts speculate that it could be used as a clean - burning substitute for fossil fuels today because it gives off high amounts of energy when burned but emits only water, not carbon.

Even grass - fed cows emit large amounts of methane gas, a greenhouse gas even more potent than carbon dioxide.

For a 1.5 - degree goal, large - scale negative emissions activity would need to begin soon, before 2030, and expand rapidly, so that by 2050 or sooner the amount of carbon sucked out of the atmosphere would have to exceed the amount emitted into it from fossil fuel burning.

Off - road vehicles have small, inefficient two - and four - stroke engines that emit large amounts of pollution, including carbon dioxide.

Starting in January 2011, large industrial facilities that must already obtain Clean Air Act permits for non-GHGs must also include GHG requirements in these permits if they are newly constructed and have the potential to emit 75,000 tons per year of carbon dioxide equivalent (CO2e) or more or if they make changes at the facility that increase GHG emissions by that amount.

By characterizing atmospheric gas mixing ratios (volume of gas per volume of air) across the North Slope, scientists hope to improve the estimates of the volume of gases like carbon dioxide and methane being emitted from biological sources such as Alaska's permafrost layer which stores large amounts of carbon.

«We emit far larger amounts of carbon dioxide, but methane is significantly more potent, so it's also very destructive.»

Natural gas, generally, emits half the amount of CO2 per unit of electricity as oil does, so it makes sense for big petroleum companies to lean on this resource more as a way to position their respective asset mixes as lower carbon and secure an even larger piece of the global carbon budget.

And biomass burning — which occurs mainly as a result of tropical forest fires, deforestation, savannah and shrub fires — emits large amounts of organic carbon particles that block solar radiation.