Sentences with phrase «which carbon dioxide increases»

Not exact matches

The new report «Lights Out for the Reef», written by University of Queensland coral reef biologist Selina Ward, noted that reefs were vulnerable to several different effects of climate change; including rising sea temperatures and increased carbon dioxide in the ocean, which causes acidification.

Why does the carbon dioxide increase as a result of the burning of fossil fuels, yet the oxygen which is used up in this burning is not significantly depleted?

The increase in carbon dioxide that is now occurring is expected to have dramatic consequences for life on Earth as a result of the so - called greenhouse effect which will make the Earth hotter.

Ocean acidification, which is a direct consequence of increased atmospheric carbon dioxide levels, is expected to have a deleterious effect on many marine species over the next century.

Second, analysis of isotopes, which can distinguish among sources of emissions, demonstrates that the majority of the increase in carbon dioxide comes from combustion of fossil fuels (coal, oil and natural gas).

As the climate changes, Southern Ocean upwelling may increase, which could accelerate ice shelf melting, release more carbon into the atmosphere and limit the ocean's ability to absorb heat and carbon dioxide from the atmosphere.

«A higher concentration of carbon dioxide in our atmosphere would aid photosynthesis, which in turn contributes to increased plant growth,» Rep. Lamar Smith (R — Texas) wrote in an op - ed last year.

Rising temperatures would put more water vapor into the atmosphere, which then rains out, increasing the amount of dissolved carbon dioxide that chemically interacts with the rocks.

Antarctica was also more sensitive to global carbon dioxide levels, Cuffey said, which increased as the global temperature increased because of changing ocean currents that caused upwelling of carbon - dioxide - rich waters from the depths of the ocean.

The ability of the oceans to take up carbon dioxide can not keep up with the rising levels of greenhouse gases in the atmosphere, which means carbon dioxide and global temperatures will continue to increase unless humans cut their carbon dioxide emissions.

The increased particulate matter can be attributed to the adoption of a gasoline direct - injection fuel system, which results in improved fuel economy and therefore lower carbon dioxide emission per mile driven.

Increase the global temperature a bit, however, and there could be a bad feedback effect, with water evaporating faster, freeing water vapor (a potent greenhouse gas), which traps more heat, which drives carbon dioxide from the rocks, which drives temperatures still higher.

Jet engine exhaust emits carbon dioxide, which drives climate change by warming the atmosphere, leading to increasing global temperatures, rising seas and extreme weather.

As carbon dioxide levels in the atmosphere increase, the seas absorb greater amounts of the gas, which reacts with water to form carbonic acid.

This balance is threatened by increasing atmospheric carbon dioxide, which causes ocean acidification (decreasing ocean pH).

«That suggests there was more greenhouse gas in the atmosphere, which would produce a warmer climate combined with increased weathering, because carbon dioxide creates carbonic acid and acid rain, which speeds chemical weathering.»

The increased production in these crops is driven by higher precipitation predicted to occur in the central U.S., combined with higher concentrations of carbon dioxide, which reduces a plant's water requirements.

A more immediately useful metric included in the IPCC report is probably the transient climate response, which describes the response of climate systems to gradual increases in carbon dioxide and can be applied to a particular moment or period of time.

They used two different climate models, each with a different sensitivity to carbon dioxide, to project California's future under two scenarios: an optimistic one, in which we only double the level of carbon dioxide in the atmosphere — since the 19th century we've already increased it by about a third — and a pessimistic scenario, in which we more than triple CO2.

But much of it takes place in oceans, which are susceptible to the increasing amounts of carbon dioxide human activity releases into the atmosphere.

«If ozone continues to increase, vegetation will take up less and less of our carbon dioxide emissions, which will leave more CO2 in the atmosphere, adding to global warming,» Sitch says.

Such a dramatic decline could turn the land from taking up carbon overall to pumping it out by 2100, as the rate of respiration by soil microbes, which exhale carbon dioxide, is predicted to increase in a warmer world.

Another possible explanation for the decline in carbon dioxide may be that the rate at which carbon monoxide is oxidised in the atmosphere has increased.

«When carbon dioxide concentrations and temperatures rise, then mixed - phase clouds will increase their liquid water content,» said Ivy Tan, a PhD candidate at Yale University who led the research, which investigated common clouds that contain both ice and water.

As it does, it could release tons of additional methane gas, which has 20 times the greenhouse effect of carbon dioxide, possibly increasing the rate of global warming.

First, they point out that their climate model gives an overall temperature increase of 4.8 °C for the world in which carbon dioxide has doubled.

The result is that when water vapour processes are correctly represented, the sensitivity of the climate to a doubling of carbon dioxide — which will occur in the next 50 years — means we can expect a temperature increase of at least 4 °C by 2100.

Increased carbon dioxide in the atmosphere boosts, by gas - liquid equilibrium, the amount of carbonic acid in the ocean, which in turn lowers the marine pH level.

There is, therefore, much current interest in how coccolithophore calcification might be affected by climate change and ocean acidification, both of which occur as atmospheric carbon dioxide increases.

Reduced nitrogen content in atmospheres with raised carbon dioxide has previously been attributed to a kind of dilutive effect, in which nitrogen absorption fails to keep pace with the increase in plants» photosynthesis and growth.

When permafrost thaws the organic matter starts to decompose, releasing greenhouse gases such as carbon dioxide and methane which increase global temperatures.

The study has assessed the current rate at which carbon dioxide is increasing in the atmosphere and compared it to the rise during a natural environmental change that happened 120 million years ago.

Fish exposed to higher carbon dioxide levels — which are expected to increase in the oceans for several decades — showed impaired cognitive function, learning difficulties, slowed visual capacity and altered sense of smell and sound.

If the Arctic Ocean is losing ice at a greater rate than previously thought, won't this increase the rate at which carbon dioxide is absorbed?

A study from scientists at James Cook University shows increased carbon dioxide levels impaired the senses of spiny damselfish, which live in the Great Barrier Reef.

Sometimes increased insulation due to a periodic shifting of the earth's orbit towards the sun will raise the temperature first and the carbon dioxide will follow — with higher temperatures reducing the amount of carbon dioxide which the ocean will have the capacity to hold — and the amount of carbon dioxide which plants are able to absorb given droughts.

The recent increase in carbon dioxide concentration is attributed to the El Niño event, which started in 2015 and goes on in 2016.

Another may be the raising of the temperature of permafrost which will release methane and carbon dioxide, increased moisture in the polar altitudes resulting in more methane in growing bogs, but there are other feedbacks to the carbon cycle.

Increased levels of atmospheric carbon dioxide could also significantly alter ocean temperatures and chemistry over the next century, which could lead to increased and more severe mass bleaching and other stressors on corIncreased levels of atmospheric carbon dioxide could also significantly alter ocean temperatures and chemistry over the next century, which could lead to increased and more severe mass bleaching and other stressors on corincreased and more severe mass bleaching and other stressors on coral reefs.

And that additional water vapour would in turn cause further warming - this being a positive feedback, in which carbon dioxide acts as a direct regulator of temperature, and is then joined in that role by more water vapour as temperatures increase.

The principal climate forcing, defined as an imposed change of planetary energy balance [1]--[2], is increasing carbon dioxide (CO2) from fossil fuel emissions, much of which will remain in the atmosphere for millennia [1], [3].

«This will cause carbon loss from the soil which means an increase in carbon dioxide concentration in the atmosphere, which will further worsen global warming,» said Takeshi Ise from the Japan Agency for Marine - Earth Science and Technology.

Study participants were exposed to moderately high carbon dioxide levels in other tests, which usually increases the breathing rate and depth.

Future studies should directly investigate whether exercise increases the activation of vitamin K - dependent proteins, but it seems reasonable to suggest that part of the reason exercise promotes cardiovascular health may be because it ensures a more abundant supply of carbon dioxide, which vitamin K uses to activate proteins that protect our heart valves and blood vessels from calcification.

It rises as daylight shortens and helps to trigger many of the metabolic changes that occur with hibernating animals — all of which are synonymous with a reduced metabolic rate, reduced respiratory rate, increased insulin resistance, reduced carbon dioxide levels, reduced energy level, reduced body temperature, increased histamine, reduced peristalsis, and so forth — just to name a few.

Particularly useful when under lots of stress, Rhodiola tends to offset the negative effects of increased carbon dioxide and lactic acid — which lowers oxygen uptake.

Deep breathing reduces stress and increases the rate at which carbon dioxide is released from the body, reducing acidity.

The engine line - up includes: a 2.4 liter inline - four engine and a 3.6 liter V6, with both of them receiving numerous improvements to reduce internal operating friction which help improve fuel economy, lower carbon dioxide (CO2) output and increase engine life.

As a result, it affords precise control of the intake - valve events — beginning and end — which reduces engine - pumping losses, increases volumetric efficiency and cuts carbon - dioxide emissions.

Hence, increase of carbon dioxide concentration in the atmosphere is not the cause of global warming which has a solar origin and is a part of natural two - century cycle»