Sentences with phrase «carbon dioxide in the air per»

The number means there would be 950 molecules of carbon dioxide in the air per every million air molecules.

The number means there were 313 molecules of carbon dioxide in the air per every million air molecules.

Not exact matches

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.

A recent report found that high - speed rail in the Midwest would reduce air travel by 1.3 million trips and car travel by 5.1 million trips per year by 2020, saving 188,000 tons of carbon dioxide emissions (equivalent to taking 34,000 cars off the road while still getting everyone to and from work).

The concentration of carbon dioxide molecules in the atmosphere is measured as parts per million of dry air, or ppm.

He also sat down with Scientific American senior editor, Mark Fischetti to explain how the basic measurements of carbon dioxide in parts per million in the air and the added heat in the atmosphere that the carbon dioxide creates called Forcing leads to water, water everywhere.

Carbon dioxide concentrations in the atmosphere are measured in parts per million, the number of molecules of carbon dioxide there are in every million molecules of air.

Despite the strong warming trend of the past 15 years, worldwide temperatures have risen less than models predict, given the build - up of carbon dioxide in the air to 25 per cent above pre-industrial levels.

A plant uses just 1 percent of the energy it receives from the sun to make glucose, whereas the artificial system achieved roughly 10 percent efficiency in converting carbon dioxide to fuel, the equivalent of pulling 180 grams of carbon dioxide from the air per kilowatt - hour of electricity generated.

$ 8 billion) over first ten years for deficit reductionObeys PAYGO; Starting in 2026, 25 % of auction revenues for deficit reductionFuels and TransportationIncrease biofuels to 60 million gallons by 2030, low - carbon fuel standard of 10 % by 2010, 1 million plug» in hybrid cars by 2025, raise fuel economy standards, smart growth funding, end oil subsidies, promote natural gas drilling, enhanced oil recoverySmart growth funding, plug - in hybrids, raise fuel economy standards $ 7 billion a year for smart growth funding, plug - in hybrids, natural gas vehicles, raise fuel economy standards; offshore drilling with revenue sharing and oil spill veto, natural gas fracking disclosureCost ContainmentInternational offsetsOffset pool, banking and borrowing flexibility, soft price collar using permit reserve auction at $ 28 per ton going to 60 % above three - year - average market price» Hard» price collar between $ 12 and $ 25 per ton, floor increases at 3 % + CPI, ceiling at 5 % + CPI, plus permit reserve auction, offsets like W - MClean Air Act And StatesNot discussedOnly polluters above 25,000 tons of carbon dioxide equivalent a year, regional cap and trade suspended until 2017, EPA to set stationary source performance standards in 2016, some Clean Air Act provisions excludedOnly polluters above 25,000 tons of carbon dioxide equivalent a year, regional cap and trade pre-empted, establishes coal - fired plant performance standards, some Clean Air Act provisions excludedInternational CompetitivenessTax incentives for domestic auto industryFree allowances for trade - exposed industries, 2020 carbon tariff on importsCarbon tariff on importsReferences: Barack Obama, 2007; Barack Obama, 8/3/08; Pew Center, 6/26/09; leaked drafts of American Power Act, 5/11/10.

Knisely projected that unless fossil fuel use was constrained, there would be «noticeable temperature changes» and 400 parts per million of carbon dioxide (CO2) in the air by 2010, up from about 280 ppm before the Industrial Revolution.

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.

The concentration of carbon dioxide has reached 386 parts per million in the air.

At 1 % concentration of carbon dioxide CO2 (10,000 parts per million or ppm) and under continuous exposure at that level, such as in an auditorium filled with occupants and poor fresh air ventilation, some occupants are likely to feel drowsy.»

Human - made greenhouse gas emissions today are enormous, especially carbon dioxide (CO2), with annual emissions of over 8 Gigatons of carbon and average annual increases of about 2 ppm (parts per million) of CO2 in the air.

The analysis concluded that without much stronger action to cut emissions both before and after 2020, «global emissions will remain on an unsustainable pathway that could lead to concentrations equal or above 550 p.p.m. [parts per million of carbon dioxide in the air] with the related temperature» rising 3 degrees Celsius, or 5.4 degrees Fahrenheit.

«Regulators ruled that Jones breached broadcast rules by claiming Australians contributed just» 1 per cent of.001 per cent of carbon dioxide in the air.»

If those emissions had simply accumulated in the air, the concentration of carbon dioxide would have increased from 280 parts per million (ppm), as it was before the Industrial Revolution, to about 550 ppm today.

Starting in January 2011, large industrial facilities that must already obtain Clean Air Act permits for non-GHGs must also include GHG requirements in these permits if they are newly constructed and have the potential to emit 75,000 tons per year of carbon dioxide equivalent (CO2e) or more or if they make changes at the facility that increase GHG emissions by that amount.

The fact that organic agriculture systems also absorb and retain significant amounts of carbon in the soil has implications for global warming, Pimentel said, pointing out that soil carbon in the organic systems increased by 15 to 28 percent, the equivalent of taking about 3,500 pounds of carbon dioxide per hectare out of the air.

The report also shows concentration of carbon dioxide in the air continues to rise to about 387 parts per million (ppm) in comparison to 280 ppm two hundred years ago, at the start of the industrial revolution.

As a remedy, Our Children's Trust is calling for a science - based government plan to bring carbon dioxide levels in the air below 350 parts per million by 2100.

The three countries most responsible, per capita, for filling the air with carbon dioxide from fossil fuels are the UK, the US and Germany, in that order.

Not coincidentally, the level of carbon dioxide in the air, as of early January, was about 400 parts per million, which is the highest in all of human history.

(Parts per million denotes the volume of a gas in the air; in this case, for every 1 million air molecules, 400 are carbon dioxide.)

This has left us with highly variable estimates of project costs, ranging from Klaus Lackner's claim that air capture could be effectuated for less than $ 100 per ton of carbon dioxide to more than $ 1000 in a 2011 study, as well as the American Physical Society's estimate of about $ 600 per ton.

IMF says in these countries, air pollution other than greenhouse gases, and congestion from incorrectly priced fuels, cause an extra $ 57.50 in damage per ton of carbon dioxide, although the damage is not from the CO2.

Air pollution other than greenhouse gases, and congestion from incorrectly priced fuels, cause an extra $ 57.50 in damage per ton of carbon dioxide, even though it is not the CO2 doing the damage.

Extracting carbon dioxide from the air would likely cost more than $ 1,000 per ton, compared to $ 50 to $ 100 per ton from a system installed in a chimney.

«Humans Didn't Exist the Last Time There Was This Much CO2 in the Air» (Eric Holthaus, Grist) «On Wednesday, scientists at the University of California in San Diego confirmed that April's monthly average atmospheric carbon dioxide concentration breached 410 parts per million for the first time in our history...» More...

«That figure can be compared with about 1.4 watts per square meter estimated by the [United Nations»] Intergovernmental Panel on Climate Change for the greenhouse effect of all the increase in carbon dioxide in the air since the Industrial Revolution,» says Svensmark.

Editor's Note: Before the Industrial Revolution, the amount of carbon dioxide in the air measured about 280 parts per million (ppm), according to researchers.

I have a PDF of it, which begins «The amount of carbon dioxide in the air will double by the year 2080 and raise the temperature an average of at least 4 per cent...» The editorial also mentions a recent paper presented by Gilbert Plass at AGU, which I haven't looked up.