Sentences with phrase «by carbon dioxide since»

While concentrations of methane in the atmosphere are about 200 times lower than carbon dioxide, methane was responsible for 60 % of the equivalent radiative forcing caused by carbon dioxide since the onset of the Industrial Revolution.

Not exact matches

DUK doesn't only mention the word «cleaner» for fun; it has retired 40 older coal units, reducing their carbon dioxide emissions by 29 % since 2005.

For example, who really notices that the amount of carbon dioxide in the atmosphere has increased by 25 per cent since the middle of the nineteenth century (as a result of the burning of fossil fuels, along with destruction of rainforests)?

But the largest contribution to restoring the carbon balance will be a reduction in world population since every person who lives makes a contribution to the carbon dioxide in the atmosphere by his or her use of the products of industry or by burning wood for fuel.

Since the 1960s, the amount of methane in the air has increased by 1 % per year — twice as fast as the build up of carbon dioxide.

New research published today in Nature Geoscience by Richard Zeebe, professor at the University of Hawai'i — Mānoa School of Ocean and Earth Science and Technology (SOEST), and colleagues looks at changes of Earth's temperature and atmospheric carbon dioxide (CO2) since the end of the age of the dinosaurs.

While overall emissions of greenhouse gases from CDP's «Global 500» have shrunk from 4.2 billion to 3.6 billion metric tons of carbon dioxide equivalent since 2009, the index's 50 largest - emitting firms have actually seen greenhouse gas emissions rise by 1.65 percent over the same period, the organization has found.

Since the growth of phytoplankton is limited by available nitrogen, and carbon dioxide is central to the growth process, Jones believes that supplying extra nitrogen to phytoplankton would increase the uptake of carbon.

Global GHG emissions continue to be dominated by fossil carbon dioxide (CO2) emissions, which however show a slowdown trend since 2012, and were stalled for the third year in a row in 2016.

This is especially true since ADM will be using a new type of injection well authorized by U.S. EPA, called Class 6, designed specifically for carbon dioxide storage.

They used two different climate models, each with a different sensitivity to carbon dioxide, to project California's future under two scenarios: an optimistic one, in which we only double the level of carbon dioxide in the atmosphere — since the 19th century we've already increased it by about a third — and a pessimistic scenario, in which we more than triple CO2.

Since methane is a greenhouse gas 25 times as potent as carbon dioxide, such a scenario would trigger a «climate catastrophe», they say, increasing the methane content of the planet's atmosphere twelve-fold, and raising temperatures by 1.3 ˚C.

As growing carbon dioxide gas emissions have dissolved into the world's oceans, the average acidity of the waters has increased by 30 % since 1750.

The current effort to regulate carbon dioxide, in fact, stemmed from a 1999 suit originally filed by liberal groups against EPA, which eventually led to a Supreme Court decision that EPA had to act since greenhouse gases fell under the purview of the Clean Air Act.

The planet's average surface temperature has risen about 1.8 degrees Fahrenheit (1.0 degree Celsius) since the late - 19th century, a change largely driven by increased carbon dioxide and other human - made emissions into the atmosphere.

Add to that the aim of reducing the country's carbon dioxide emissions by 80 per cent from 1990 levels before 2050, and an economy emerging from its longest recession since the second world war, and it is easy to see why political debates about the...

As he explains it, carbon dioxide has expanded by about 33 percent since the industrial age began, while methane emissions have risen by 150 percent.

The great majority of the extra carbon dioxide in the atmosphere was put there by the developed world, with the US alone responsible for an estimated quarter of emissions since 1750.

When ruminants digest their feed, methane is formed as a natural by - product of the microbial process in the rumen, and since methane is a 25 times more powerful greenhouse gas than carbon dioxide, there is a need to devise methods to reduce such emissions from cattle.

Fueled by people's pyromania and the El Niño global weather phenomenon, carbon dioxide concentrations reached 409.44 parts per million on April 9 at an air - sampling station atop Hawaii's Mauna Loa, a rise of more than five ppm since the same date last year.

According to data from the U.S. Environmental Protection Agency (EPA), levels of all major air pollution contaminants (ozone, nitrogen oxides, carbon monoxide, sulfur dioxide, particulate matter and lead) are down significantly since 1970; carbon monoxide levels alone dropped by more than 70 percent.

Since carbon dioxide (CO2) is the natural by - product of the combustion of fuel, the increased standards would also address climate change by reducing tailpipe emissions of CO2.

Since 2000, the CARBON DIOXIDE LEVEL HAS INCREASED by 14.4 % of the total increase since the start of the Industrial RevoluSince 2000, the CARBON DIOXIDE LEVEL HAS INCREASED by 14.4 % of the total increase since the start of the Industrial Revolusince the start of the Industrial Revolution.

The amount that carbon dioxide levels have risen since the dawn of the Industrial Revolution has caused Earth's average temperature to rise by 1.6 °F since the beginning of the 20th century.

Since it is the cumulative volume of carbon dioxide emitted that determines how much the planet warms, this makes it difficult to assess how far Russia's contribution will go to meeting the 2C limit set by governments.

However, the surface warming caused by human - produced increases in carbon dioxide, methane, and other greenhouse gases leads to a large increase in water vapor, since a warmer atmosphere holds more moisture.

By studying carbon dioxide in planet's atmosphere via spectroscopy and measuring its orbit and mass more precisely for the first time since its discovery some 15 years ago, the team found that the planet's atmosphere appears to be cooler higher up, contrary to what was expected.

By its placement in the film, it appears that I am saying that since carbon dioxide exists in the ocean in such large quantities, human influence must not be very important — diametrically opposite to the point I was making — which is that global warming is both real and threatening in many different ways, some unexpected.

This process can be inefficient, however, since the gaseous carbon dioxide tends to bubble out of solution and into the atmosphere above the algal cultivation system before it is consumed by the algae.

About BIOACID: Since 2009, more than 250 BIOACID scientists from 20 German research institutes have investigated how different marine organisms respond to ocean acidification and increasing carbon dioxide concentrations in seawater, how their performance is affected during their various life stages, how these reactions impact marine food webs and elemental cycles and whether they can be mitigated by evolutionary adaptation.

Since then, the absorptive qualities of carbon dioxide have been more precisely quantified by decades of laboratory measurements (Herzberg 1953, Burch 1962, Burch 1970, etc).

The public, press and policy makers have been repeatedly told that three claims have widespread scientific support: Global temperature has risen about a degree since the late 19th century; levels of CO2 [carbon dioxide] in the atmosphere have increased by about 30 percent over the same period; and CO2 should contribute to future warming.

However, you do lose the carbon dioxide since it's released by the vinegar before you consume it.

Since the nineteenth century, the concentrations of carbon dioxide in the air increased by 30 %, doubled the methane and nitrous oxide have risen 15 %.

Original post On Tuesday, a simple but sobering note predicting an imminent end to measurements of carbon dioxide in air lower than 400 parts per million was posted by the group at the Scripps Institution of Oceanography that has been carefully measuring the rising concentration of this greenhouse gas in the atmosphere since 1958.

Since we know that the earth's surface is significantly warmed by geothermal heat, that geothermal heat is variable, that truly titanic forces are at work in the earth's core changing its structure and alignment, and that geothermal heat flux has a much greater influence on surface temperatures than variations in carbon dioxide can possibly have, it makes sense to include its effects in a compendium of global warming discussion parameters.

But given what I understand to be true, that greater warming has occured than in the distant past than is currently occurring, how can we be so sure we are examining all the right 20th century events, since these earlier warmings were clearly caused by events other than human driven carbon dioxide emissions?

Since the start of the industrial revolution, carbon dioxide levels are believed to have risen by about one - third, largely due to the burning of fossil fuels.

(It's been a very long journey — abetted by an important Supreme Court decision — since President George W. Bush tried to restrict carbon dioxide from such plants and quickly reversed course.)

since it is being caused by global warming from carbon dioxide, the way to stop it, and prevent sea level rise, would be to reduce CO2 in the atmosphere.

Not surprisingly, given the depth of the recession, emissions of carbon dioxide from fuel burning in the United States declined 2.8 percent last year, the biggest annual drop since the early 1980's, according to a preliminary estimate released by the Energy Department on Wednesday.

According to the summary for policymakers, there is now even greater certainty, 95 per cent, up from 90 per cent in its 4th assessment of 2007, that more than half the warming since 1950 was caused by fossil fuel carbon dioxide.

This is why and how such an approach could work: Supreme Court Decision Sets Legal Precedent Since the 2007 ruling by the Supreme Court that carbon dioxide emissions are a pollutant subject to regulation by the EPA under the Clean Air Act, a legal precedent exists,

Among other initiatives, we're proud to have reduced our greenhouse gas emissions intensity by more than 30 % since 1990; to be the initial developer of a supercritical coal plant that will emit 15 % lower carbon dioxide than existing plants; to be a founding member of the FutureGen Alliance; to be a part of Australia's low - carbon Coal 21 program; and to be the only non-Chinese partner in China's zero - emissions GreenGen project.

... In the late 1980s, there was a sense of the new about the greenhouse effect, even though scientists had been positing since the 1890s that heat - trapping gases, particularly carbon dioxide released by burning coal and other focal fuels could raise global temperatures.

So even doubling the concentration of atmospheric carbon dioxide would only result in a very small theoretical rise in temperature, since the largest amount of the greenhouse effect caused by atmospheric CO2 has already occurred with the first 20 ppmv concentration.

The scientistsâ $ ™ predictions also undermine the standard climate computer models, which assert that the warming of the Earth since 1900 has been driven solely by man - made greenhouse gas emissions and will continue as long as carbon dioxide levels rise.

Since 2012, carbon dioxide emissions from the electric power sector declined by 10.5 percent, but those emissions reductions could be...

«Due to human activities such as the combustion of fossil fuels and deforestation, and the increased release of CO2 from the oceans due to the increase in the Earth's temperature, the concentration of atmospheric carbon dioxide has increased by about 35 % since the beginning of the age of industrialization.»

Earth's atmosphere has already warmed by 0.8 C since the start of the Industrial Revolution in the mid-18th century, and carbon dioxide (CO2) that is being emitted today will linger for centuries to come.