Sentences with phrase «higher concentrations of co2»

I suspect that the higher concentrations of CO2 in the oceans (higher acidity) is more a a function of water temperature than atmospheric CO2 concentration.

A truth about oceanic geology is that in very deep water (along the oceanic floor) at cooler temperatures (~ 4 deg C) CaCO3 is not stable due to the higher acidity and higher concentrations of CO2.

That's leading to higher concentrations of CO2 in the atmosphere, according to the National Oceanic and Atmospheric Administration's greenhouse gas index.

Higher concentrations of CO2 also reduce the nutritional quality of some staples, such as wheat.

Higher Concentrations of CO2 in the Atmosphere increases incidents of threatening concentrations at ground levels and basements.

Unlike our circulatory systems which adapt to thinner air at higher altitudes, the ability to developmentally adapt to higher concentrations of CO2 just isn't there.

Higher concentrations of CO2 in the atmosphere generally increase plant growth and productivity.

The oceans now have far higher concentrations of CO2, as well as the lowest pH in millions of years.

In particular, cold waters of the Southern Ocean show higher concentrations of CO2 and lower in CaCO3, and this reduces the availability of the carbonate required for the calcification process.

The higher the concentration of CO2, the lower the test scores.

When the fish grew up in fresh water and seawater with high concentrations of CO2, they lost weight at double the rate of fish that were only exposed to salt water with higher CO2 levels.

Company fuel cells have a naturally high concentration of CO2 in their fuel stream — about 75 percent concentration of CO2, compared to 10 percent or so from a typical coal plant emissions stream.

Mythbusters have done a simple experiment with different containers of air subjected to a light source, with one container ordinary air, the other having air plus a higher concentration of CO2, quite high I think, possibly 5 %.

Mythbusters have done a simple experiment with different containers of air subjected to a light source, with one container ordinary air, the other having air plus a higher concentration of CO2, quite high I think, possibly 5 %.

This means glacier meltwater has a higher concentration of CO2 and as it trickles down through the ice layers modifies the ice bubbles as Jaworowski explained in his presentation to the US Senate Committee (March 2004).

Industrial areas have higher concentration of CO2.

Night vision which use a special type glass which transparent to longwave IR can «see» thermal heat and the CO2 in atmosphere is mostly transparent [high level of CO2 from a fire doesn't significantly block the signal - nor higher concentration of CO2 in urban areas or +1000 ppm CO2 of normal indoor air.]

In the first incident, the owner was found dead with his head and torso in a beer mixing tank... 10 months later in the same brewery a worker was found dead in a pressure tank... He was found up to his hips in the container and had been poisoned — probably in seconds — due to the high concentration of CO2...

Is the effect of higher concentration of CO2 i.e. the CO2 signal or fingerprint, hopelessly swamped by other variables, some cyclic and some chaotic, some probably unknown and possibly unknowable and greatly variable in just about any timeframe from minutes to millions of years?

As a result, high concentrations of CO2 are causing the oceans to acidify.

If the annual change of approximately 6ppmv in atmospheric CO2 content was due primarily to ocean outgassing the warmest temperatures would correspond to the highest concentration of CO2.

Too high a concentration of CO2 causes a reduction of photosynthesis in certain of plants.

Truth is I don't know what the impacts from a higher concentration of CO2 will be.

Dobu Island in Papua New Guinea has active underwater fumaroles (Jennifer Marohasy posted on it a few years back) that seep high concentrations of CO2 into the environment, in turn acidifying the surrounding ocean.

Extremely high concentrations of CO2 and other greenhouse gasses like methane.

Maybe, just maybe, CO2 reacts differently in an open and mixed system, at far, far, far lower concentrations than a closed, isolated, at far, far, far, far, far, far, higher concentration of CO2 system.

Not exact matches

Part of the problem is that the benefits of better plant growth, thanks to higher carbon dioxide concentrations (plants use CO2 for photosynthesis) are more than offset by the impact of higher temperatures and differing precipitation.

Five cultures each were kept under control conditions (15 °C) and at elevated water temperature (26 °C) in combination with three different concentrations of carbon dioxide (CO2): a control value with today's conditions, the conditions of the Intergovernmental Panel on Climate Change's «worst case scenario» and the highest possible degree of acidification.

Dorte Haubjerg Søgaard has discovered that these frost flowers hold extremely high concentrations of calcium carbonate, which can have a further significant impact on the potential CO2 uptake in the Arctic.

Humanity's quest for fire has left a consistent trace, remarkable even in the vast expanse of geologic time — and that trace is, in large part, a dirty, black smudge that covers the globe as well as higher concentrations of atmospheric CO2 that may set Earth's temperature for millennia.

Areas with high fossil fuel emissions, such as cities and industrial zones, will have below - normal concentrations of heavy CO2.

In this study in Timothy grass, researchers led by environmental health scientist Christine Rogers of the UMass Amherst School of Public Health and Health Sciences (SPHHS) determined the interactive effects of CO2 and ozone at projected higher levels on pollen production and concentrations of a Timothy grass pollen protein that is a major human allergen.

About 460 million years ago, the concentration of CO2 in the atmosphere ranged somewhere between 14 and 22 times the current level, and the average global temperature was about 5 °C higher than it is now.

Lead author of the study, Sabrina Wenzel of DLR explains: «the carbon dioxide concentrations measured for many decades on Hawaii and in Alaska show characteristic cycles, with lower values in the summer when strong photosynthesis causes plants to absorb CO2, and higher - values in the winter when photosynthesis stops.

The bottom line is that only drastic cuts in global emissions of CO2, of two - thirds or more, can stop the concentration of the gas rising ever higher and stave off ever more severe climate change.

Those effects will only get worse if nothing is done to stop dumping CO2 into the sky, much less to begin to reduce concentrations that have now reached more than 400 parts per million in the air — higher than that breathed by any members of our fellow Homo sapiens in the last 200,000 years.

For the study, five cultures were kept under a constant temperature and three different concentrations of carbon dioxide (CO2): a control value with today's conditions, the conditions that could be reached until the end of this century according to the most critical calculations of the Intergovernmental Panel on Climate Change (IPCC), and the highest possible degree of acidification.

Being part of the mining area Herrerias in Andalusia, deep waters of Pit Lake Guadiana show extremely high concentration of dissolved carbon dioxide (CO2).

So if conditions that are not the normal ones are applied to them (such as watering them with salinated water, subjecting them to high lighting intensity or working with raised concentrations of CO2), these defences will become intensified and, as a result, the antioxidant qualities of the plants will be boosted.

But fossil fuel burning will keep pumping out more CO2 year after year, pushing concentrations of the greenhouse gas higher and higher.

The effects of increased temperatures and atmospheric CO2 concentration have been documented concerning shifts in flowering time and pollen initiation from allergenic plants, elevated production of plant - based allergens, and health effects of increased pollen concentrations and longer pollen seasons.15, 16,17,18,19,20,21,22,23,24,25,26 Additional studies have shown extreme rainfall and higher temperatures can lead to increased indoor air quality issues such as fungi and mold health concerns.27, 28,29,30

Climate change, resulting in more frost - free days and warmer seasonal air temperatures, can contribute to shifts in flowering time and pollen initiation from allergenic plant species, and increased CO2 by itself can elevate production of plant - based allergens.137, 15,16,17,18,19,138 Higher pollen concentrations and longer pollen seasons can increase allergic sensitizations and asthma episodes, 20,21,155,22 and diminish productive work and school days.138, 22,23

The concentration of CO2 is now more than 40 percent higher than at any time during at least the past 800,000 years.

The evidence here is more circumstantial, but Danish researcher Lars - Georg Hersoug notes that atmospheric levels of the gas have risen during the same period and that in the United States, obesity has increased most rapidly on the East Coast, where CO2 concentrations are highest.

Also, at higher CO2 levels, the concentrations of bacterioneuston, marine bacteria inhabiting the surface, increased.

After 5000 years of rising temperatures and 4200 years of rising co2 concentrations, temperatures reverse themselves in an environment of high and rising co2 concentrations and start falling for some unknown reason.

Concentrations of CO2 can be as high as 50 percent or more and must be filtered out to maintain gas quality.

CO2 has a well - known seasonality with concentration minima in late summer, at the end of the vegetation and leaf growth season, and higher levels during winter.

An atmosphere high in concentrations of CO2 might also have lent support to life on the Red Planet.

Hottel and Leckner data is intended to be used to calculate heat transfer in things like boilers and flue gas where the temperature is high and the concentrations of CO2 and H2O from fuel combustion are also high.