Sentences with phrase «primarily by carbon dioxide»

The only way to do that is to reduce the output of so - called greenhouse gasses, caused primarily by carbon dioxide emissions from industry, automobiles and other human activities, Horton said.

Not exact matches

(The ocean currently absorbs roughly half of the greenhouse gases, primarily carbon dioxide, that are released by human activity.)

«I agree that carbon dioxide is a greenhouse gas, that greenhouse gas concentrations in the atmosphere are increasing as a result of human activities — primarily burning coal, oil, and natural gas — and that this means the global mean temperature is likely to rise,» Ebell said in the statement released by CEI yesterday.

Fermentation Fibers may be fermented by the colonic microflora to carbon dioxide, methane, hydrogen, and short - chain fatty acids (primarily acetate, propi - onate, and butyrate).

E85 today is primarily made with grain - based ethanol that reduces carbon dioxide emissions by as much as 29 percent compared with pure gasoline.

We are concerned about the effect of methane and black carbon primarily because they are exacerbating the threats posed by carbon dioxide.

Primarily this means carbon dioxide, methane and nitrous oxide generated by driving motor vehicles and burning coal, oil and gas to generate electricity,...

The enhanced Greenhouse Effect we are now measuring is a human fingerprint because the source of it is the continued emission of greenhouse gases, primarily carbon dioxide, produced by industrial activity.

This past week has brought some attention to a much earlier «let's pretend» — that global climate is influenced primarily by human - caused carbon dioxide emissions rather than changes in the sun, our source of heat and light.

We maintain this deficit by liquidating stocks of resources and accumulating waste, primarily carbon dioxide in the atmosphere.

There is now widespread agreement among climate scientists that the earth is warming as a result of human activity, primarily due to rising levels of carbon dioxide and other heat trapping atmospheric gases created by burning fossil fuels.

Global warming, the gradual heating of Earth's surface, oceans and atmosphere, is caused by human activity, primarily the burning of fossil fuels that pump carbon dioxide (CO2), methane and other greenhouse gases into the atmosphere.

As human activity — primarily dumping 40 billion tons of carbon dioxide into the atmosphere every year — causes the Earth's surface temperature to go up, a lot of that energy is absorbed by the oceans, causing them to expand.

You may wonder why the government finds the need to pursue such action since 1) U.S. carbon dioxide emissions have already topped out and have generally been on the decline for the past 7 - 8 years or so (from technological advances in natural gas extraction and a slow economy more so than from already - enacted government regulations and subsidies); 2) greenhouse gases from the rest of the world (primarily driven by China) have been sky - rocketing over the same period, which lessens any impacts that our emissions reduction have); and 3) even in their totality, U.S. carbon dioxide emissions have a negligible influence on local / regional / global climate change (even a immediate and permanent cessation of all our carbon dioxide emissions would likely result in a mitigation of global temperature rise of less than one - quarter of a degree C by the end of the century).

HFCs are chemicals primarily used in refrigeration, air conditioning, and foam blowing, which were introduced to replace the ozone depleting chemicals phased - out by the Montreal Protocol, despite the fact that HFCs are extremely harmful to the climate with global warming potentials hundreds and thousands of times higher than carbon dioxide (CO2).

A carbon footprint means the carbon dioxide (CO2) emissions generated by someone's lifestyle, primarily through the burning of fossil fuels.

The oceans play a central role in the global carbon cycle, absorbing more than a quarter of the carbon dioxide (CO2) that humans put into the air («anthropogenic carbon»), primarily by fossil fuel burning.

Richard Heede, described by Science Magazine as «the Climate Accountant,» painstakingly assembled data from corporate reports to calculate the amount of carbon dioxide and methane originating primarily with major corporate and nationalized fossil fuel industry operations — both directly and from the use of their products.