Sentences with phrase «carbon dioxide in air lower»

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.

Not exact matches

For several hours each day, unbeknownst to those employees, the researchers raised and lowered the amount of carbon dioxide in the air, and then tested everyone on nine different kinds of cognitive ability, like responding to a crisis, strategic thinking and applying their knowledge to a practical task.

Researchers at the University of Gothenburg have now revealed that the concentration of nitrogen in plants» tissue is lower in air with high levels of carbon dioxide, regardless of whether or not the plants» growth is stimulated.

Diesel engines burn their fuel more efficiently compared to their gasoline counterparts — and thus emit considerably lower quantities of the greenhouse gas carbon dioxide (CO2)-- mainly because diesel engines work with excess air in so - called lean - burn mode.

By analyzing global water vapor and temperature satellite data for the lower atmosphere, Texas A&M University atmospheric scientist Andrew Dessler and his colleagues found that warming driven by carbon dioxide and other gases allowed the air to hold more moisture, increasing the amount of water vapor in the atmosphere.

$ 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.

The logic is obvious: Green roofs can reduce the retention of heat in urban areas, help to cool down buildings and thereby lower their energy use, and even pull some carbon dioxide from the air and feed it back into plant growth.

However, carbon dioxide is heavier than air, so it can accumulate in low - lying areas (protected glens, basements).

The ad's message is as clear as America's air: Thanks to increasing use of clean, affordable natural gas, U.S. emissions of carbon dioxide from electricity generation — a major source of the greenhouse gas — are at their lowest level in 25 years.

Increasing wind generation to the levels of the Study Scenario simultaneously reduces carbon dioxide emissions, improves air quality resulting in lower levels of illness and premature loss of life, and reduces demand on water resources.

Figure 9 - A Effect of the doubling of the carbon dioxide content of the air: note on the lowest graphic the 7 °C hot spot at 250 mbar and on the middle graphic +12 °C in winter on the rim of Antarctica and on the arctic polar cycle, +5 °C over the Sahara, +4 °C over the whole Pacific ocean.

Wenk Physics Institute, University of Bern, CH — 3012 Bern, Sidlerstrasse 5, Switzerland Studies on air trapped in old polar ice1, 2 have shown that during the last ice age, the atmospheric carbon dioxide concentration was probably significantly lower than during the Holocene — about 200 p.p.m. rather than 270 p.p.m.. Also, Stauffer et al. 3 recently showed by detailed analyses of Greenland ice cores, that during the ice age, between about 30,000 and 40,000 yr BP, the atmospheric CO2 level probably varied between 200 and 260 p.p.m..

By now you may have seen our new ad, «Air Up Here,» highlighting the role natural gas has played in helping to lower U.S. carbon dioxide emissions to their lowest levels in nearly 25 years.

But according to this research, breathing in air with lower levels of volatile organic compounds and carbon dioxide will make your brain work better.

The policy - ramp advocates argue that the damage done by an additional ton of carbon in the atmosphere is fairly low at current concentrations; the cost will not get really large until there is a lot more carbon dioxide in the air, and that won't happen until late this century.

The failure to actually reduce global emissions has meant that all possibilities are now on the table, including some that sound like premises from a science - fiction novel: Humans could sequester carbon dioxide by removing it from the air through technologies that mimic trees, or we could spray water droplets in the lower atmosphere to reflect light and heat back to space, or we could seed sulfur aerosols in the stratosphere to do the same.