Sentences with phrase «than carbon dioxide over»

Since 2006, atmospheric levels of methane — a greenhouse gas 86 times more potent than carbon dioxide over a 20 - year period — have steadily been on the rise.

As a greenhouse gas, methane is 84 times more potent than carbon dioxide over 20 years.

The large investments by ECAs in oil and gas projects increase the world's emissions of methane, which is 87 times more potent than carbon dioxide over a 20 - year period.

Methane, the primary component of natural gas, is a powerful greenhouse gas — 72 times more potent than carbon dioxide over a 20 - year time frame.

Pound for pound, the effect of methane on climate change is more than 20 times greater than carbon dioxide over a 100 - year period, according to the Environmental Protection Agency.

But natural gas consists predominately of methane, so even small leaks from natural gas wells can create large climate concerns because methane is a potent greenhouse gas — it's about 30 times more effective at trapping solar heat than carbon dioxide over a 100 - year period.

It is also a greenhouse gas 34 times more potent than carbon dioxide over the course of a century.

But when unburned methane is released into the atmosphere, it is a potent greenhouse gas with a warming potential 28 to 34 times greater than carbon dioxide over a 100 - year timeframe (and up to 84 times more potent over a 20 year timeframe).

Methane or natural gas is 72 times more potent at capturing heat in the atmosphere than carbon dioxide over the first 20 years after release - and to deal with climate change, we need to focus on the next few decades.

Not exact matches

Deforestation adds more carbon dioxide to the atmosphere than the sum total of all cars and trucks on the world's roads... and over 1 billion trees are cut down each year to produce disposable diapers.

During the Eocene, the concentration of carbon dioxide in the atmosphere was more than 560 parts per million, at least twice preindustrial levels, and the epoch kicked off with a global average temperature more than 8 degrees Celsius — about 14 degrees Fahrenheit — warmer than today, gradually cooling over the next 22 million years.

Growth rates for concentrations of carbon dioxide have been faster in the past 10 years than over any 10 - year period since continuous atmospheric monitoring began in the 1950s, with concentrations now roughly 35 percent above preindustrial levels (which can be determined from air bubbles trapped in ice cores).

A report in Nature stated that in some cases the escape of methane, a far more potent greenhouse gas than carbon dioxide, «could effectively offset the environmental edge that natural gas is said to enjoy over other fossil fuels.»

If these rates continue, emissions of methane, a greenhouse gas 25 times more powerful than carbon dioxide on 100 - year time scales, will increase 4 percent over the next decade.

American Electric Power will begin capturing at best just over 3 percent of the 8.5 million metric tons of carbon dioxide emitted by its 1,300 - MW Mountaineer Power Plant in West Virginia later this year and injecting the CO2 more than three kilometers underground.

As a result — and for reasons that remain unexplained — the waters of the Southern Ocean may have begun to release carbon dioxide, enough to raise concentrations in the atmosphere by more than 100 parts per million over millennia — roughly equivalent to the rise in the last 200 years.

Total annual production emissions, averaged over five years, would equal about 100 grams of carbon dioxide per megajoule — which is 7 percent greater than gasoline emissions and 62 grams above the 60 percent reduction in greenhouse gas emissions as required by the 2007 Energy Independence and Security Act.

Although plant activity can increase with warmer temperatures and higher carbon dioxideconcentrations, the change in carbon dioxide amplitude over the last 50 years is larger than expected from these effects.

By analyzing boron in shells accumulated over more than 2 million years, Hönisch was able to reconstruct in unprecedented detail how atmospheric carbon dioxide levels have changed over time.

That's because methane (or CH4) has more than 30 times the global warming impact of carbon dioxide (CO2) over 100 years (and its more than 80 times more powerful over 20 years, since methane disappears from the atmosphere far more quickly than CO2).

Scientists measured how much carbon dioxide the artificially warmed plants respired — released into the air via their leaves — and learned that over time, the trees acclimated to warmer temperatures and increased their carbon emissions less than expected.

In this scenario, carbon dioxide concentrations are projected to continue to rise and to exceed 900 parts per million, more than double today's level of just over 400 parts per million.

Overturning textbook knowledge, the researchers discovered that the trees «exhale» less carbon dioxide during the day than previously thought, and that forest photosynthesis doesn't decline over the course of the summer.

The models are wrong, and the effects of the increase carbon dioxide over the last century will be much more severe than is currently imagined / modelled.

Using the relationship between carbon dioxide and temperature, staying within that budget means carbon dioxide emissions over the industrial era can not contribute more than 800 billion tonnes of carbon.

Power plants are expected to pump out more than 300 billion tons of carbon dioxide over their expected lifetimes, creating a 4 percent jump in emissions each year over the next few decades, according to scientists from Princeton University and University of California at Irvine.

This releases methane, a greenhouse gas over 20 times more potent than carbon dioxide, into the atmosphere.

According to the U.S. Environmental Protection Agency, the greenhouse gas methane is highly efficient at trapping heat in the atmosphere and a significant contributor to global warming, over 80 times more potent than carbon dioxide.

Over a 100 - year timeframe, methane is about 34 times as potent at trapping heat than carbon dioxide, and over 20 years, it's 86 times more potOver a 100 - year timeframe, methane is about 34 times as potent at trapping heat than carbon dioxide, and over 20 years, it's 86 times more potover 20 years, it's 86 times more potent.

Allergenic plants grown at elevated carbon dioxide produce more pollen over a longer pollen season than those grown at ambient levels (78).

The company says that over the NEDC standardized European driving cycle, its plug - in diesel hybrid will emit less than 50 grams of carbon dioxide per kilometer.

The facelifted Mazda Axela will produce five percent less carbon dioxide (CO2), three percent less nitrous oxide (NOx), two percent fewer non-methane hydrocarbons (NMHC), two percent less sulphur oxide (SOx), and three percent less particulate matter over its lifetime than the previous model

The facelifted Mazda Demio will produce 11 percent less carbon dioxide (CO2), 6 percent less nitrous oxide (NOx), 5 percent fewer non-methane hydrocarbons (NMHC), and 7 percent less sulphur oxide (SOx) over its lifetime than the previous model.

I've restored that spectrum to its rightful place in the version below, as well as adding some more material on molecular dipoles at the beginning, since Judge Alsup (and others since) had questions about how it was that carbon dioxide molecules could act on infrared radiation over a much larger volume than the molecules themselves actually occupy.

Shaviv and Veizer (2003) published a paper in the journal GSA Today, where the authors claimed to establish a correlation between cosmic ray flux (CRF) and temperature evolution over hundreds of millions of years, concluding that climate sensitivity to carbon dioxide was much smaller than currently accepted.

There may be far more carbon dioxide in the atmosphere over the entire prior century than in previous ones — but that hasn't translated into anywhere near temp.

The release of this trapped methane is a potential major outcome of a rise in temperature; it is thought that this is a main factor in the global warming of 6 °C that happened during the end - Permian extinction as methane is much more powerful as a greenhouse gas than carbon dioxide (despite its atmospheric lifetime of around 12 years, it has a global warming potential of 72 over 20 years and 25 over 100 years).

The results «indicate that a weak radiative forcing by carbon dioxide is highly unlikely» and that a «climate sensitivity greater than 1.5 °C has probably been a robust feature of the Earth's climate system over the past 420 million years»

Once the first 20 municipalities take advantage of the program and convert to LED street lighting, greenhouse gas emissions are expected to be reduced by more than 42,000 metric tons of carbon dioxide over the next 15 years, equivalent to removing 8,840 cars off the road over this span.

Rather than engaging in endlessly nitpicking, unproductive arguments over unknowns such as the logarithmic exponent describing the almost nonexistent / nonexistent effect of carbon dioxide on temperature, and the «estimate» of CO2 sensitivity, let's look at empirical evidence, and the big picture: CO2 is rising, and the planet's temperature is falling.

While carbon dioxide (CO2) usually takes the spotlight among greenhouse gases, the impact of methane on climate change is in fact 20 times stronger than CO2 (over a 100 - year period).

Today the surface ocean is almost 30 % more acidic than it was in pre-industrial times, and over the next few decades, the level of acidity of the surface ocean will continue to rise without deliberate action to reduce carbon dioxide emissions.

While natural gas releases half the carbon dioxide of coal when it is burned, it is made up of 80 percent methane, a potent greenhouse gas that traps heat 86 times more effectively than CO2 over a 20 - year span.

Today the surface ocean is almost 30 % more acidic than it was in pre-industrial times, and over the next few decades, the level of acidity of the surface ocean will continue to rise without deliberate action to reduce carbon dioxide emissions and stabilize»

To reduce methane, a greenhouse gas over 20 times more potent than carbon dioxide, farmers in California and the Mid-South implemented a variety of groundbreaking voluntary conservation practices that included alternate wetting and drying and early drainage of their fields as well as crop residue management.

Dr Solomon and her colleagues peg the 2000 - 2009 cooling effect at about a third of the opposite effect they would expect from the carbon dioxide added over the same decade, and only a bit more than a twentieth of the warming expected from the rise in carbon dioxide since the industrial revolution.

It achieves this objective primarily through the weekly online publication of CO2 Science, and which over the years has presented more than 5,000 synopses of peer - reviewed scientific journal articles, original research, and other educational materials germane to the debate over carbon dioxide and global change.

In 2008 the growth rate in the fossil fuel carbon dioxide emissions was smaller than in the preceding five years, but it was still over 2 %.

Methane (CH4) deserves attention it is such a highly potent greenhouse gas — 25 — 33 times more powerful than carbon dioxide (CO2) over a 100 - year time - horizon, but as much as 100 time more potent over 20 years, according to the latest research!

At the same time, those increases in carbon dioxide occurred over a much longer time frame than we are dealing with currently.