Sentences with phrase «caused emissions of carbon»

They have told the public, politicians, and the press that «global warming» (alias «climate change») is primarily due to human - caused emissions of carbon dioxide, and that if this continues at current levels that this will result in catastrophic global warming.

How much hotter will human - caused emissions of carbon dioxide make the planet this century?

At many other power plants, such a reduction would cause emissions of carbon monoxide and other pollutants to rise sharply.

Not exact matches

We are living in an enormous fabric of life, where anti-poverty measures may create new pressures caused by excess consumption; where methane emissions increase if we eat more beef or throw food waste in a landfill; where drought leads to forest fires and more carbon; where marginalizing women makes communities less resilient.

While U.S. power plants have limits on other air - born pollutants — like nitrogen and sulfur oxides that cause acid rain — there haven't been limits, until now, on the levels of carbon dioxide emissions that power plants can emit.

Rick Perry, the U.S. Secretary of Energy who infamously once said he would do away with the Department of Energy, told CNBC that he didn't believe that carbon dioxide emissions from humans are the main cause for climate change.

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.

Unnecessary and extravagant Christmas lighting doesn't just cause a lot of carbon emissions (around 400 kg), but it can also add an extra hundred pounds or so to your electricity bill for the season.

In a 1968 report prepared for API in New York City, SRI scientists Elmer Robinson and R.C. Robbins acknowledged some uncertainty concerning the relation between carbon emissions and rising temperatures, yet said carbon dioxide was the most likely cause of the «greenhouse effect.»

Add a few more centuries of similar emissions, and carbon dioxide levels rise to those not seen in 420 million years, causing unprecedented sea level rise.

For example, it is now straight - forward to calculate that the carbon dioxide emissions for each seat on a return flight from, say, London to San Francisco causes about five square metres of Arctic sea ice to disappear.»

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.

Of particular interest: whether some acidification might be caused by respiration of bottom - dwelling creatures like sponges, or whether most can be attributed to carbon emissions from an industrialized worlOf particular interest: whether some acidification might be caused by respiration of bottom - dwelling creatures like sponges, or whether most can be attributed to carbon emissions from an industrialized worlof bottom - dwelling creatures like sponges, or whether most can be attributed to carbon emissions from an industrialized world.

Tailpipe exhaust accounts for some 20 percent of the world's emissions of carbon dioxide; an economic recovery could easily cause the return of $ 140 - a-barrel oil.

A rather straightforward calculation showed that doubling the level of carbon dioxide in the atmosphere... which would arrive in the late 21st century if no steps were taken to curb emissions... should raise the temperature of the surface roughly one degree C. However, a warmer atmosphere would hold more water vapor, which ought to cause another degree or so of warming.

The rate at which carbon emissions warmed Earth's climate almost 56 million years ago resembles modern, human - caused global warming much more than previously believed, but involved two pulses of carbon to the atmosphere, University of Utah researchers and their colleagues found.

This newest threat follows on the heels of overfishing, sediment deposition, nitrate pollution in some areas, coral bleaching caused by global warming, and increasing ocean acidity caused by carbon emissions.

In a surprise move, the president also weighed in on the controversial Keystone XL pipeline, planned to transport oil from Canada's tar sands to refineries on the Gulf of Mexico — suggesting that it will go ahead only if it causes no increase in carbon emissions.

Last week, the California Air Resources Board (CARB) adopted a low - carbon fuel standard that requires greater use of fuels that cause lower greenhouse gas emissions, compared with gasoline.

«Poultry and pork cause rather low emissions, in a range equivalent to 10 to 30 kilos of carbon dioxide per kilo of protein, while beef cause 200 kilos per kilo protein.

The team discovered that the human impact on biogenic methane and nitrous oxide emissions far outweighed the human impact on the terrestrial uptake of carbon dioxide, meaning that humans have caused the terrestrial biosphere to further contribute to warming.

Volcanic rocks deep beneath the sea off the coast of California, Oregon and Washington State might prove one of the best places to store the carbon dioxide emissions that are causing global warming, a new study finds.

Critics argue that albedo modification and other «geoengineering» schemes are risky and would discourage nations from trying to reduce their emissions of carbon dioxide, the heat - trapping gas that comes from the burning of fossil fuels and that is causing global warming by absorbing increasing amounts of energy from sunlight.

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.

«Extensive deforestation in Indonesia is a cause for global concern as it contributes substantially to land - based global carbon emissions and potentially high rates of biodiversity loss,» explained Asst Prof Carrasco.

It is not clear whether or not Romney accepts the science on the pace and causes of climate change, but he promises to amend the Clean Air Act to specifically exclude regulation of carbon emissions.

Fossil fuel - based electricity production is responsible for about 38 percent of U.S. carbon dioxide emissions — CO2 pollution being the major cause of global climate change.

Given those findings and the rest of the improved understanding of the climate system, the IPCC projects that if carbon dioxide gas emissions — the primary cause of warming — continue to grow at the recent rate, the world would warm 2oC above 19th - century levels by the middle of this century.

Warming and deoxygenation are also caused by rising carbon dioxide emissions, underlining the importance of reducing fossil fuel emissions.

The news of the increase in U.S. human - caused GHG emissions comes at a critical moment in the global battle against climate change, particularly after the International Energy Agency announced last month that global carbon emissions related to energy consumption have stabilized for the first time in a growing economy.

As early as 1965, when Al Gore was a freshman in college, a panel of distinguished environmental scientists warned President Lyndon B. Johnson that carbon dioxide (CO2) emissions from fossil fuels might cause «marked changes in climate» that «could be deleterious.»

Altogether, human - caused emissions this year are projected to reach 41 billion tons of carbon dioxide.

An international team of 27 oceanographers churned through 13 global models and concluded that carbon dioxide emissions could cause pH levels in the ocean to drop from an average of 8.1 today to 7.7 by the end of the century.

The largest source of «clean» energy is not reducing carbon emissions by as much as official figures claim — and it is causing immense harm to the poor and to wildlife

Since the 17th century, the seas have absorbed about a third of human - caused carbon dioxide emissions.

Around 15 % of the global carbon dioxide emissions that cause climate change come from deforestation, and much of that occurs in the Amazon.

It is that the rise of electricity and the power - station & «clean» domestic coal 1940 - 1970 may have cut black carbon more than is presently accounted for and thus with the renewed ramp - up of SO2 emissions in that period, more readily provide the cause of the 1940 - 75 temperature «hiatus».

By the way, in my opinion, the elevated greenhouse gas levels already in the air, combined with the future emissions from machines already built, plus increased natural emissions from carbon sinks becoming carbon emitters (i.e. permafrost melting) will cause the rate of warming to top 0.4 C / decade by mid-century.

«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.»

Meeting this demand without causing extensive air pollution or additional carbon emissions will require expanded use of nuclear power.

Put together, all of the warming caused by biomass - related CO2 emissions and black and brown carbon particles creates a planetary warming effect of 2 degrees Celsius (35.6 degrees Fahrenheit) over the two - decade period simulated by the computer.

ABSTRACT: Tropical deforestation has caused a significant share of carbon emissions and species losses, but historical patterns have rarely been explicitly considered when estimating these impacts [1].

Nearly 15 % of the global carbon dioxide emissions that cause climate change come from deforestation, much of which occurs in the Brazilian Amazon.

Frederike Böhm Department of Philosophy, Kiel University I like to follow the concept «reduce — reuse — recycle» when it comes to consumption: borrowing, sharing or buying second - hand are often good alternatives to purchasing new things, the production of which causes additional carbon dioxide emissions and use resources.

Pierrehumbert said Howarth uses the figure for methane's 20 - year global warming potential — 86 times that of carbon dioxide — without seriously discussing the magnitude of warming caused by those methane emissions compared to warming prevented by the reduction in carbon dioxide emissions.

If human - caused climate change is to be slowed enough to avert the worst consequences of global warming, carbon dioxide emissions from coal - fired power plants and other pollutants will have to be captured and injected deep into the ground to prevent them from being released into the atmosphere.

The study concluded that human emissions of carbon dioxide (CO2) cause dangerous global warming.

published report, Hayward stated that holding the US back from fulfilling it's petroleum - based product requirements is «a reluctance to develop the nation's massive natural resources under the mistaken belief in the unproven science that claims carbon dioxide (CO2) emissions from burning of fossil fuels is the major cause of recent and future warming of the Earth.

But the annual amount of human - caused global emissions of carbon dioxide, the main greenhouse gas driving climate change, is now about 50 percent larger than in 1992.

Since 2005 the consumption of higher carbon fossil fuels has begun to decline very significantly, which has caused individual U.S. end - use Sectors» carbon emissions to also decline.