Sentences with phrase «by human carbon emissions»

The belief that warming is principally caused by human carbon emissions is completely unwarranted based on the evidence available.

The study, published today in Nature, places the blame squarely on rising global temperatures driven by human carbon emissions.

Not exact matches

Just by changing the way we farm, by stopping deep tilling, mono - cropping, and chemical fertilizer use — the Climate Collaborative estimates regenerative carbon farming practices could mitigate as much as 4 billion to 6 billion tons of CO2 equivalents a year or 10 percent to 12 percent of global human - caused emissions.

He will continue to deny climate change caused by human activity; and will use his committee position to attack the EPA move to cut power plant carbon emissions.

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.

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.

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.

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.

And achieving any stabilization target — whether 2 degrees C of warming or 450 ppm or 1,000 gigatons of carbon added to the atmosphere by human activity — will require at least an 80 percent cut in emissions from peak levels by the end of this century and, ultimately, zero emissions over the long term.

The White House obviously accepts the science behind human - caused climate change, as was made clear again this week by its announcement of plans to cut carbon emissions from U.S.

Environment: The Conservative Party accepts human - induced global warming is a threat to the planet's life and pledges to reduce Britain's carbon emissions by 80 % by 2050.

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.

Fake paper fools global warming naysayers The man - made - global - warming - is - a-hoax crowd latched onto a study this week in the Journal of Geoclimatic Studies by researchers at the University of Arizona's Department of Climatology, who reported that soil bacteria around the Atlantic and Pacific oceans belch more than 300 times the carbon dioxide released by all fossil fuel emission, strongly implying that humans are not to blame for climate change.

These variations originate primarily from fluctuations in carbon uptake by land ecosystems driven by the natural variability of the climate system, rather than by oceans or from changes in the levels of human - made carbon emissions.

The carbon entity data allows for the differentiation between carbon emissions, produced and marketed by each of the 90 major multi-national and state - owned coal, oil and gas companies (and their predecessors), and the total human attribution on climate change impacts.

Emissions of CO2 by human activities, including fossil fuel burning, cement production, and gas flaring, amount to about 27 billion tonnes per year (30 billion tons)-LSB-(Marland, et al., 2006)-- The reference gives the amount of released carbon (C), rather than CO2, through 2003.].

«The main worry is that if deforestation increases, in combination with the increase fragmentation, increase in drought probability [caused by climate change] and the use of fires by humans, carbon emissions could escalate to proportions never experienced before.»

Marine scientists who met in Monaco in October 2008 released a strong statement on January 30, 2009 about ocean acidification accelerating due to increasing carbon emissions caused by human - induced climate change.

The close relationship between ENSO and global temperature, as described in the paper, leaves little room for any warming driven by human carbon dioxide emissions.

Hence the irony in Bob Carter's conclusion «The close relationship between ENSO and global temperature leaves little room for any warming driven by human carbon dioxide emissions».

According to one of its authors, Bob Carter, the paper found that the «close relationship between ENSO and global temperature, as described in the paper, leaves little room for any warming driven by human carbon dioxide emissions».

Human carbon emissions are certainly disturbing the climate system upon which we depend, and in spite of the economic slowdown, and despite all the efforts by governments, businesses and people to reduce them, our emissions are reaching new highs.

A new study, however, shows that forests devastated by drought may lose their ability to store carbon over a much longer period than previously thought, reducing their role as a buffer between humans» carbon emissions and a changing climate.

· Coal - or gas - fired systems with carbon capture and storage (CCS) reduce GHG emissions, but increase other pollution problems by 5 - 80 per cent, and create higher human health and environmental impacts.

Right now, the sum of global emissions of carbon dioxide by 6.6 billion very - unequal humans is about 29 billion tons a year.

Data from satellite observations «suggest that greenhouse models ignore negative feedback produced by clouds and by water vapor, that diminish the warming effects» of human carbon dioxide emissions.

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?

Quick progress in curbing emissions of carbon dioxide, the main human - generated greenhouse gas, could be achieved by using capital from rich countries to help prevent the destruction of tropical forests (and resulting greenhouse - gas emissions), Mr. Gore said.

While I am still comfortable with my argument that «human inertia» is the prime explanation for a long response time for doing anything about greenhouse gas emissions, I am very wary of efforts by California and the U.K. to stick their necks out on carbon reductions.

Which then leads to a very different characterization of the problem in which carbon emissions are really just a by - product of a cheap energy consumerist society, and the problem isn't to reduce emissions, it is to restructure our entire societies (and our conceptions of them) so that we no longer depend on growth in resource consumption as our definition of human progress.

«In 1997, human - caused Indonesian peat fires were estimated to have released between 13 % and 40 % of the average carbon emissions caused by the burning of fossil fuels around the world in a single year.»

And I am a firm believer that climate change is real, that it is impacted by human behavior and carbon emissions.

The document begins by making a number of irrelevant and misleading statements about human carbon dioxide (CO2) emissions.

In a wide - ranging December 2013 study, conducted to support Our Children's Trust, a group advancing legal challenges to lax greenhouse gas emissions policies on behalf of minors, Hansen called for a «human tipping point» — essentially, a social revolution — as one of the most effective ways of combating climate change, though he still favors a bilateral carbon tax agreed upon by the United States and China as the best near - term climate policy.

In a press release boldly titled «Nature, Not Man, is Responsible for Recent Global Warming,» study coauthor Bob Carter claimed that the findings left «little room for any warming driven by human carbon dioxide emissions».

There is one and only one justification for a carbon tax — an attempt to influence the future course of the earth's climate (or, as some people prefer, to mitigate anthropogenic climate change) by trying to force down the emissions of the most abundant human - generated greenhouse gas.

One recent study found that the average global temperature would rise another 3.2 ° by the end of the century even if human carbon emissions dropped to zero tomorrow, a scenario that is, of course, extremely unlikely.

The ocean uptake of excess atmospheric carbon dioxide, the excess above preindustrial levels driven by human emissions, causes well - understood and substantial changes in seawater chemistry that can affect marine organisms and ecosystems.

Global upper - ocean chemistry trends driven by human carbon dioxide emissions are more rapid than variations in the geological past.

10/18/16 — Setting a tax on carbon emissions from fossil fuel combustion is considered by many experts, including two economic analysts writing in Issues, as a promising way to help control human - caused climate change, but US policy makers have resisted.

Most environmentalists and sympathetic politicians want you to believe that carbon dioxide (CO2) is a «dirty,» dangerous air pollutant and human emissions of it must be reduced by any means possible if the world is to survive.

Is the upwelling a symptom of a change caused by the GHE due human carbon emission and land use changes?

Carbon dioxide is the most important greenhouse gas directly produced by human activities.Present emissions of carbon dioxide (CO2) account for about half the short - term climatic impact of man - made greenhouse gases (GHGs).

SciDev.Net: LIMA - Rising levels of carbon dioxide (CO2) in the atmosphere caused by human - driven emissions might lead to larger sweet potatoes, a staple food for many African and Asian countries, research reveals.

These facts help explain why, in spite of the Earth's air temperature increasing to a level that the IPCC claims is unprecedented in the the past millennium or more, a recent study by Randall et al. (2013) found that the 14 % extra carbon dioxide fertilization caused by human emissions between 1982 and 2010 caused an average worldwide increase in vegetation foliage by 11 % after adjusting the data for precipitation effects.

By 1979, the evidence human carbon dioxide emissions were serious threat was strong enough that the National Academy of Sciences published Carbon Dioxide and Climate: A Scientific Assessment, with this statement, «A wait and see policy may mean waiting until it is too late.»

Luntz insists that Americans would support a cap on carbon emissions — 80 percent of Dems, but also 43 percent of Republicans he surveyed are either definitely or pretty sure climate change is a problem that's caused in part by humans.

«Depending on emissions rates, carbon dioxide concentrations could double or nearly triple from today's level by the end of the century, greatly amplifying future human impacts on climate.

George is convinced that by adding iron sulphate to the oceans, he can stimulate plankton blooms and so suck enough carbon dioxide out of the atmosphere to offset human emissions from burning coal and oil.

The most recent report of the International Panel on Climate Change says it is extremely likely that human influence has been the dominant cause of this warming which is driven by the build up of carbon dioxide emissions from fossil fuel combustion, cement production, and land use changes.