Sentences with phrase «than carbon dioxide on»

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.

But HFCs are thousands of times more potent than carbon dioxide on a pound - per - pound basis, making them an obvious target for international efforts to combat climate change.

Not exact matches

It pollutes more than carbon dioxide, but looking only at that, based on MyClimate.com, here are the results of one round - trip flight between New York and Los Angeles, flying coach:

As reiterated in the Intergovernmental Panel on Climate Change report issued on March 31, scientists estimate that we can emit no more than 500 gigatonnes of carbon dioxide in order to limit the increase in global temperature to just 2 degrees C by 2100 (and governments attending the successive climate summits have agreed in principle to this objective).

Negotiators from nearly 200 countries are focusing mainly on reducing carbon dioxide output from industry in order to limit global warming, rather than on diet.

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.

«More than ever, we must reaffirm our commitment to cleaner alternative modes of transportation and to efforts reducing dependency on carbon - dioxide emitting vehicles.»

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.

The indirect effects of rising atmospheric carbon dioxide (CO2) levels, such as changes in soil moisture and plant structure, can have a bigger impact on ecosystems than previously thought.

The simulations suggested that the indirect effects of increased CO2 on net primary productivity (how much carbon dioxide vegetation takes in during photosynthesis minus how much carbon dioxide the plants release during respiration) are large and variable, ranging from less than 10 per cent to more than 100 per cent of the size of direct effects.

According to an analysis from Iowa State University, conventional produce travels about 1,500 miles on average to its destination, causing the release of 5 to 17 times more carbon dioxide than food from regional and local farms.

But there are technology options on the horizon that might allow for future coal - fired power plants to avoid the average emissions of more than four million metric tons of carbon dioxide every year per plant.

As temperatures warm, the Arctic permafrost thaws and pools into lakes, where bacteria feast on its carbon - rich material — much of it animal remains, food, and feces from before the Ice Age — and churn out methane, a heat trapper 25 times more potent than carbon dioxide.

The agency then offered a singular solution: Rather than ratify the Kyoto Protocol on climate change or reduce carbon dioxide emissions, Americans should simply adapt.

The team found that adopting global best practices would set China on track for peak carbon dioxide emissions by 2020, a full decade earlier than they promised last week.

Eliminating this financial risk premium makes nuclear power levelized electricity cost competitive with that of coal, and it becomes lower than that of coal when a modest price on carbon dioxide emissions is imposed,» the report says.

The comet also contains more frozen carbon dioxide, or dry ice, than has been found on any other comet.

This is happening because humans have been producing carbon dioxide (for example, by running cars on gasoline) faster than plants can absorb it, which makes the Earth warmer — and much faster than has happened naturally in the past.

Experts on greenhouse - gas emissions tell me that every time my car burns a gallon of gasoline, I am putting more than 25 pounds of carbon dioxide into the atmosphere as well as a smaller amount of methane, nitrous oxide, and various other toxic gases.

Because I work on my computer more than 12 hours a day, switching would eliminate 135 pounds of carbon dioxide emissions a year.

During the PETM, atmospheric carbon dioxide more than doubled and global temperatures rose by 5 degrees Celsius, an increase that is comparable with the change that may occur by later next century on modern Earth.

When combined with a separate, related sequestration project starting this fall on the same corn processing plant, the initiative will pump more industrially captured carbon dioxide underneath the earth for permanent storage in deep saline rock reservoirs than ever has been attempted in the United States.

Even the 350 - ppm limit for carbon dioxide is «questionable,» says physicist Myles Allen of the Climate Dynamics Group at the University of Oxford, and focusing instead on keeping cumulative emissions below one trillion metric tons might make more sense, which would mean humanity has already used up more than half of its overall emissions budget.

Less than a micrometer in diameter, it's the most abundant photosynthetic organism on Earth, taking up carbon dioxide and releasing oxygen.

They argue that there is something wrong with a world in which carbon - dioxide levels are kept to 450 parts per million (a trajectory widely deemed compatible with a 2 degree cap on warming) but at the same time more than a billion of the poorest people are left without electricity, as in one much discussed scenario from the International Energy Agency.

Garrett says that, based on other historical records, particulate pollution seems to be following a different path than carbon dioxide, the principal suspect in global warming.

More than 40 mainly developed countries, including New Zealand and members of the European Union, have, or are in the process of developing, markets to help cut their output of climate - warming emissions by putting a price on carbon dioxide.

Some economists believe a simple tax on greenhouse gas emissions makes more sense than the elaborate cap - and - trade regime for carbon dioxide envisioned by Evolution and other players in the nascent market.

These chemicals can be tens of thousands of times more potent than carbon dioxide in trapping heat, so even small amounts leaking into the atmosphere could have an outsized impact on the climate.

Yang Fuqiang, a senior adviser on energy, environment and climate change at the Natural Resources Defense Council, agrees that in 2015, China's carbon dioxide emissions dropped for the first time, signaling that the country's emissions peak may come earlier than previously thought.

And such techniques might be capable, at best, of sequestering one billion metric tons of carbon dioxide per year (based on the extent of iron - deficient waters around the globe), compared with annual human emissions of more than eight billion metric tons and rising.

«With a warming climate, rising carbon dioxide levels, dams on more rivers than not, and overloading of nutrients into our waterways, the magnitude and duration of toxic cyanobacterial blooms is only going to get worse.»

Some prior research has suggested that carbon dioxide emissions from all lakes on Earth are less than what was found in the Arctic, and future factors could shift the importance of sunlight, noted Lars Tranvik, a Swedish scientist, in an accompanying Science article.

The researchers also found that — among their hundreds of production scenarios — organic ones were more energy - intensive on average, producing more carbon dioxide than conventional production.

Colorado led the way in 1988 when Denver became the first city to introduce the additives on the basis of research claiming that they helped the fuel's hydrocarbons to burn more efficiently at low temperatures, thereby producing more carbon dioxide than CO and also reducing emissions of the polluting hydrocarbons themselves.

Fueled by people's pyromania and the El Niño global weather phenomenon, carbon dioxide concentrations reached 409.44 parts per million on April 9 at an air - sampling station atop Hawaii's Mauna Loa, a rise of more than five ppm since the same date last year.

In the time since the 2007 version of this report, the human effect on the climate has grown more than 40 percent stronger, thanks to continued emissions of greenhouse gases and more precision in measurements, with carbon dioxide leading the charge.

«If a power plant is burning continuously, within three to five months, depending on the type of power plant, the carbon dioxide from the power plant is doing more to heat the earth than the fires in its boiler,» Ken Caldeira, a climate scientists at the Carnegie Institute and the study's co-author, said.

Doniger notes that Bush has refused to sign on to a plan that calls for a 50 percent cut in carbon dioxide and other greenhouse gases by 2050 or to an effort to hold average temperatures from rising by more than 2 degrees Celsius (3.6 degrees Fahrenheit) above preindustrial levels, as have been proposed by other countries.

However, a new University of Minnesota study with more than 1,000 young trees has found that plants also adjust — or acclimate — to a warmer climate and may release only one - fifth as much additional carbon dioxide than scientists previously believed, The study, published today in the journal Nature, is based on a five - year project, known as «B4Warmed,» that simulated the effects of climate change on 10 boreal and temperate tree species growing in an open - air setting in 48 plots in two forests in northern Minnesota.

Heatwaves from Europe to China are likely to be more intense and result in maximum temperatures that are 3 °C to 5 °C warmer than previously estimated by the middle of the century — all because of the way plants on the ground respond to carbon dioxide in the atmosphere.

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.

Climate Change: The Last Great Global Warming (p 56) The levels of carbon dioxide release and current speed of warming across the globe could lead to extinctions on a scale worse than previously thought, an article in this month's Scientific American suggests.

This is the inescapable conclusion of a landmark paper, published in Nature Geoscience, which finally admits that the computer models have overstated the impact of carbon dioxide on climate and that the planet is warming more slowly than predicted.

If the folks at Guinness World Records kept tabs on climate change, they'd be taking note that the planet has hit a milestone: levels of heat - trapping carbon dioxide in the atmosphere have averaged more than 400 parts per million each day for the entire month of April.

Depending on who you believe methane is 23 - 62 times more greenhouse active than carbon dioxide.

With JWST, a few hours of integration time will be enough to detect Earth - like levels of water vapor, molecular oxygen, carbon dioxide and other generic biosignatures on planets orbiting a white dwarf; beyond that, observing the same planet for up to 1.7 days will be enough to detect the two CFCs in concentrations of 750 parts per trillion, or 10 times greater than on Earth.

Methane (CH4) is an extremely potent greenhouse gas, 20 - 30 times more powerful than carbon dioxide (CO2) on a century timescale.

Upon your arrival to the second planet from the sun, you'd be greeted by surface temperatures comparable to those in a pizza oven, and a carbon - dioxide atmosphere more than 90 times denser than ours here on Earth.

Palm trees grew on the North Slope of Alaska and carbon dioxide levels were 3 to 12 times higher than today's concentrations.