Sentences with phrase «than carbon dioxide from»

Not exact matches

This gets even worse the closer plants are to sources of carbon dioxide — ragweed growing next to highways produces more potent pollen than ragweed growing away from large roads.

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.

Hypothesis Traces First Protocells Back to Emergence of Cell Membrane Bioenergetics Dec. 20, 2012 — A coherent pathway - which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells - has been traced for the first time in a major hypothesis paper in Cell this week.

December 20, 2012 — A coherent pathway — which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells — has been traced for the...

Origin of Life: Hypothesis Traces First Protocells Back to Emergence of Cell Membrane Bioenergetics Dec. 20, 2012 — A coherent pathway — which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells — has been traced for the first time in a major hypothesis paper in Cell this week.

ORIGIN OF LIFE: Hypothesis Traces First Protocells Back to Emergence of Cell Membrane Bioenergetics Dec. 20, 2012 — A coherent pathway — which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells — has been traced for the first time in a major hypothesis paper in Cell this week.

Dec. 20, 2012 — A coherent pathway — which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells — has been traced for the first time in a major hypothesis paper in Cell this week.

The most important is preventing methane gas, a greenhouse gas but a short - term pollutant that is 72 times more detrimental than carbon dioxide within a 20 - year period, from entering the atmosphere.

In animal models, exposure to cigarette smoke or nicotine during fetal development alters the expression of the nicotinic acetylcholine receptor in areas of the brainstem important for autonomic function, 28 alters the neuronal excitability of neurons in the nucleus tractus solitarius (a brainstem region important for sensory integration), 29 and alters fetal autonomic activity and medullary neurotransmitter receptors.30 In human infants, there are strong associations between nicotinic acetylcholine receptor and serotonin receptors in the brainstem during development.31 Prenatal exposure to tobacco smoke attenuates recovery from hypoxia in preterm infants, 32 decreases heart rate variability in preterm33 and term34 infants, and abolishes the normal relationship between heart rate and gestational age at birth.33 Moreover, infants of smoking mothers exhibit impaired arousal patterns to trigeminal stimulation in proportion to urinary cotinine levels.35 It is important to note also that prenatal exposure to tobacco smoke alters the normal programming of cardiovascular reflexes such that there is a greater - than - expected increase in blood pressure and heart rate in response to breathing 4 % carbon dioxide or a 60 ° head - up tilt.36 These changes in autonomic function, arousal, and cardiovascular reflexes might all increase an infant's vulnerability to SIDS.

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).

Climate change experts want more certain actions than are called for in the new proposed rule to cut carbon dioxide from power plants

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.

That is likely different than the experiences of wild animals, who have to adapt to the regularly changing carbon dioxide levels of lakes and reservoirs from season to season and throughout the day.

In fact, it would take 3,600 projects of Sleipner's scale — which is the largest such project underway — to reduce current carbon dioxide emissions from coal by less than half, the report says.

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.

This means that larger amounts of carbon are released (in the form of the greenhouse gas carbon dioxide) from these areas than from the undisturbed interior of the forest.

Much of that comes from power plants that burn coal or natural gas — emitting more carbon dioxide into the atmosphere, even more than was captured.

«So, even well - managed present - day forests store much less carbon than their natural counterparts in 1750, which explains the [net] lack of carbon dioxide removal from the atmosphere.»

As city - dwellers and tourists switch from riding fossil fuel - powered vehicles to public bikes, more than 30,000 tons of carbon dioxide emissions is reduced annually, estimates Tao Xuejun, vice president of the program.

Those trees are going to fall down and rot and turn into methane, which is much worse than carbon dioxide,» he said, noting that by turning wood chips into biofuel, his company would actually be reducing greenhouse gases from the atmosphere.

Researchers from the United Kingdom and Brazil also said the pair of droughts have raised concerns that the forest could be approaching a point where it ceases to be a carbon «sink,» absorbing more carbon dioxide from the atmosphere than it produces, and flips to a carbon source.

In fact, if one of today's plug - ins draws its juice from a current coal - burning power plant, then overall it will cause slightly more carbon dioxide to be released into the air than a standard hybrid.

In fact, air concentrations of carbon dioxide have to build up to more than 10 percent to be hazardous, which is difficult to achieve, according to modeling from Lawrence Livermore National Laboratory (LLNL).

Not only does it come from renewable resources, but it's better than PET at sealing out gases like oxygen and carbon dioxide, which is critical for preserving foodstuffs.

In Maine, cooking the same turkey in the same oven but with electricity generated primarily from renewable energy releases less than three pounds of carbon dioxide.

The changes will cut emissions of carbon dioxide from Bynov by 12 800 tonnes a year, or more than 65 per cent.

Although the concentration of carbon dioxide in the atmosphere is much higher, at around 385 parts per million, methane is a worry as it is much better than carbon dioxide at locking in heat from solar radiation.

«The increased carbon dioxide emissions from the nine government - approved plants alone will more than cancel out all of the reductions in greenhouse gas emissions from China's recent investments in wind and solar electricity,» Yang said.

The seven - day rainfall total from Harvey was as much as 40 percent higher than rainfall from a similar storm would have been decades ago, before human activity caused atmospheric carbon dioxide levels to spike, according to a study published yesterday in Geophysical Research Letters.

From the atmosphere's point of view, growing biomass to burn in a power plant and using the electricity to move a car avoids 10 tons of carbon dioxide emissions per acre, or 108 percent more emission offsets than ethanol.

Human - caused climate change caused the storm to drop significantly more rain than storms would have before atmospheric carbon dioxide levels spiked from the consumption of fossil fuels, according to research published yesterday.

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.

Supercritical carbon dioxide is easier to compress than steam and allows a generator to extract power from a turbine at higher temperatures.

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.

Well according to a study in the journal Functional Ecology [Toshie Mizunuma et al., The relationship between carbon dioxide uptake and canopy colour from two camera systems in a deciduous forest in southern England], those images may be more than just pretty pictures.

However, the carbon dioxide concentration in the atmosphere — roughly 290 ppm (parts per million)-- was ca. 110 ppm lower than the current level, as ice core data from the Antarctic shows.

The process generates copious amounts of nitrous oxide, a greenhouse gas 300 times more potent than carbon dioxide, while the output of methane — another potent greenhouse gas — from cattle is estimated to generate some 20 percent of overall U.S. methane emissions.

Energy - related carbon dioxide emissions from developing countries will be 127 percent higher than in the world's most developed economies by 2040, according to figures released Thursday by the U.S.

This is because large animals disperse large seeded plant species often associated with large trees and high wood density — which are more effective at capturing and storing carbon dioxide from the atmosphere than smaller trees.

For a 1 gigawatt power plant, a 1 percent improvement in efficiency saves 17,000 metric tons of carbon dioxide emissions a year, equivalent to removing more than 3,500 vehicles from the road.

A host of new techniques and technologies will be required to reduce emissions from these sources that includes reusing heat and power generated in manufacturing processes; recycling materials or substituting them; controlling greenhouse gases other than carbon dioxide (CO2); and, ultimately, capturing and burying the CO2 produced.

We are harvesting trees faster than they can regrow; taking nutrients from soils faster than they can be replenished; depleting fish stocks faster than they can restock; and emitting carbon dioxide into the air faster than nature can reabsorb it.

When ruminants digest their feed, methane is formed as a natural by - product of the microbial process in the rumen, and since methane is a 25 times more powerful greenhouse gas than carbon dioxide, there is a need to devise methods to reduce such emissions from cattle.

A molecule of water is two hundred times more effective at trapping radiation from Earth than a molecule of carbon dioxide.

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.

Dr Tina Van De Flierdt, co-author from the Department of Earth Science and Engineering at Imperial College London, says: «The Pliocene Epoch had temperatures that were two or three degrees higher than today and similar atmospheric carbon dioxide levels to today.

Hydrogen can also be split from water in high - temperature nuclear reactors or generated from fossil fuels such as coal or natural gas, with the resulting carbon dioxide captured and sequestered rather than released into the atmosphere.

According to the experiments of Langley, the carbon dioxide and the water vapor, which the atmosphere contains, are more opaque to the heat rays of great wave lengths which are emitted by the earth, than to the waves of various lengths which emanate from the sun.

Analysis of gases trapped in mud pumped up from the borehole has shown that radon, carbon dioxide, and helium are more abundant in fault areas than in solid crust.