Sentences with phrase «human emissions in»

The oceans may or may not have been a net carbon sink but the extent to which they acted as a net carbon sink would have been reduced by the higher surface temperatures and that to me suggests that they must have contributed to higher CO2 in the air and since the oceans are magnitudes more important than human emissions in the natural carbon cycle that is where we need to look to explain observed changes.

If you know of any natural process that can or does mimic the human emissions in such a perfect way, I am very interested to hear about it.

Some natural process imitates the behaviour of the human emissions as disturbance in such a way that it follows the human emissions in an exact ratio.

Understanding the role of human emissions in the occurrence of such extreme fire events can lend insight into how these events might change in the future.

The human emissions in the (lower) troposphere drop out on average in 4 days...

Compare this to human emissions in 1991: 23 billion tonnes of CO2 (CDIAC).

But human emissions in ten years are about 40 ppmv.

«We estimate that black carbon, with a total climate forcing of +1.1 W m − 2, is the second most important human emission in terms of its climate forcing in the present - day atmosphere; only carbon dioxide is estimated to have a greater forcing.»

Not exact matches

It commits rich and poor nations to rein in rising carbon levels and is an attempt to eliminate net greenhouse gas emissions from human activity this century.

Trump's stance on the environment contradicts thousands of scientists and decades of research, which has linked many observable changes in climate, including rising air and ocean temperatures, shrinking glaciers, and widespread melting of snow and ice, to an increase in greenhouse gas emissions from human activities.

But not everyone believes in human - induced climate change, or supports emission cuts.

Nearly a quarter of all food calories produced for humans are never consumed, resulting in about $ 1 trillion in annual economic losses, significant greenhouse gas emissions and inefficient use of water, land and other resources.

... modalities, rules and guidelines as to how, and which, additional human - induced activities related to changes in greenhouse gas emissions by sources and removals by sinks in the agricultural soils and the land - use change and forestry... shall be added or subtracted.

Granted, there are more benefits to reducing particulate and greenhouse gas emissions than just climate change, i.e. PM 2.5 which can be stuck in the human lung and cause cancer / respiratory issues, SO2 which contributes to acid rain (we've already eliminated the majority of this problem), as well as soot (nobody wants the surrounding area covered in ash).

Given the knowledge that they are crapping in their own habitat with their carbon emissions from fossil fuel burning on Earth, I'd like to think humans have gained an evolutionary advantage which canines lack.

Scientific instruments showed that the gas had reached an average daily level above 400 parts per million — just an odometer moment in one sense, but also a sobering reminder that decades of efforts to bring human - produced emissions under control are faltering....)

Yeo, for the record, is sure that the increase in carbon emissions is due to us pesky humans, but accepts «there may be other long - term cycles at work».

The findings are the first to note increased greenhouse gas emissions due to antibiotic use in cattle; a recent study suggests that methane emissions from cud - chewing livestock worldwide, including cows, account for about 4 % of the greenhouse gas emissions related to human activity.

Many noted that even though Tillerson parts ways with Trump in saying that human - caused emissions at least play a role in driving warming, his refusal to discuss Exxon Mobil's role in obscuring climate research and his caution on U.S. leadership on global climate engagement helped fuel Democratic opposition to his confirmation.

Pruitt is currently participating in a lawsuit against the EPA's regulations to reduce greenhouse gas emissions from power plants and denies the overwhelming scientific consensus on human - caused climate change.

China «could cause some decreases [in stratospheric aerosols] if that is the source,» Neely says, adding that growing SO2 emissions from India could also increase cooling if humans are the dominant cause of injecting aerosols into the atmosphere.

Bacteria release N2O when they consume the nitrogen in soil or water, but human activity now accounts for nearly 40 per cent of N2O emissions (Science, DOI: 10.1126 / science.1176985).

As a result, more of human emissions would remain in the atmosphere, increasing the greenhouse effect that contributes to global warming and alters Earth's climate.

That is because human activities going back 150 years have emitted long - lasting carbon dioxide into the atmosphere, meaning that sharp reductions in future emissions are needed to avoid harmful climatic impacts.

Carbon emissions have grown rapidly in the past decades, and humans emit about 10 petagrams of carbon per year.

Thus, he notes, the increase in emissions seen in recent years likely stems from human sources.

Unless greenhouse emissions are cut, «we move toward a world where heat stress is a vastly greater problem than it has been in the rest of human history.

The results imply that the interaction between organic and sulfuric acids promotes efficient formation of organic and sulfate aerosols in the polluted atmosphere because of emissions from burning of fossil fuels, which strongly affect human health and global climate.

If similar results are found in other urban areas, then unknown urban sources could account for 7 to 15 per cent of humans» global emissions of the gas, the researchers calculate — far more than was thought (Geophysical Research Letters, DOI: 10.1029 / 2009gl039825).

Oceans are taking in about 90 percent of the excess heat created by human greenhouse gas emissions, but they're also absorbing some of the carbon dioxide (CO2) itself.

Acid in the atmosphere can come from large volcanic eruptions and human - made emissions from industry.

Emissions from vehicles, power plants, industrial operations, and other human activities are a primary cause of surface ozone, which is one of six main pollutants regulated in the U.S. by the Clean Air Act.

Emissions from farms outweigh all other human sources of fine - particulate air pollution in much of the United States, Europe, Russia and China, according to new research.

«Despite some reductions in air pollutant emissions in Europe and North America, human health impacts from ozone are still a cause for concern across the world and are rising in parts of East Asia, with the potential for serious health effects on their populations,» said Zo?

Most carbon emissions linked to human activity are in the form of carbon dioxide gas (CO2), but other forms of carbon include the methane gas (CH4) and the particles generated by such fires — the tiny bits of soot, called black carbon, and motes of associated substances known as brown carbon.

According to the European Space Agency, about a quarter of all human CO2 emissions are being taken in by the world's oceans.

The request also calls for cuts in international climate programs such as SilvaCarbon, a forest assistance program supported by the U.S. Geological Survey and the U.S. Forest Service, and they are all links in a chain that is working toward providing effective measures of human - caused carbon dioxide emissions.

It should come as no surprise that an archival search of the U.S. Patent Office yields an embarrassment of riches regarding various contraptions for guarding against self - abuse (masturbation) and nocturnal seminal emissions (wet dreams) in human males.

In other words, human emissions made the extreme levels of rainfall experienced in south - east England 25 per cent more likelIn other words, human emissions made the extreme levels of rainfall experienced in south - east England 25 per cent more likelin south - east England 25 per cent more likely.

In its 2007 report, the IPCC concluded with 90 percent certainty that human - caused greenhouse gas emissions have been the primary factor in Earth's overall temperature rise since 195In its 2007 report, the IPCC concluded with 90 percent certainty that human - caused greenhouse gas emissions have been the primary factor in Earth's overall temperature rise since 195in Earth's overall temperature rise since 1950.

German researchers suggest that greenhouse gas emissions from human activity are linked to an increase in extreme weather events

Marine biodiversity is in jeopardy from human activities such as acidification from carbon emissions, posing an existential threat to many marine animals, Wiens said.

«It's one of the clearest examples of how humans are actually changing the intensity of storm processes on Earth through the emission of particulates from combustion,» said Joel Thornton, an atmospheric scientist at the University of Washington in Seattle and lead author of the new study in Geophysical Research Letters, a journal of the American Geophysical Union.

The ability of the oceans to take up carbon dioxide can not keep up with the rising levels of greenhouse gases in the atmosphere, which means carbon dioxide and global temperatures will continue to increase unless humans cut their carbon dioxide emissions.

In the first study of its kind, scientists have calculated the amount of carbon absorbed by the world's tropical forests and the amounts of greenhouse gas emissions created by loss of trees, as a result of human activity.

«Carbon release back then looked a lot like human fossil - fuel emissions today, so we might learn a lot about the future from changes in climate, plants, and animal communities 55.5 million years ago.»

Cooney himself made 294 edits to the administration's 364 - page Strategic Plan for the U.S. Climate Change Science Program posted July 24, 2003, «to exaggerate or emphasize scientific uncertainties or to deemphasize or diminish the importance of the human role in global warming,» and Cooney and the CEQ played a role in eliminating climate change sections in the EPA's draft Report on the Environment as well as its National Air Quality and Emissions Trends Report.

Seniors (31 %) are less likely than those under age 30 (60 %) to say the Earth is warming due to human activity, and are less inclined to favor stricter power plant emission limits in order to address climate change.

But while wildfires are estimated to contribute about 18 percent of the total PM2.5 emissions in the U.S., many questions remain on how these emissions will affect human populations, including how overall air quality will be affected, how these levels will change under climate change, and which regions are to most likely to be impacted.

Sizer of WRI said that in trying to reduce global emissions, Canadian and Russian policymakers should attempt to limit human - caused wildfires, as well as other forms of forest clearing.