Sentences with phrase «air carbon dioxide»

-- based on 400 million litres of air breathed out in a lifetime and at 4 % of that air carbon dioxide; each lungful breathed out contains around 4 % carbon dioxide.

Rice (a C3 crop) and barnyard grass (Echinochloa crusgalli L.)(a C4 weed) were grown in a 1:1 mixture in a paddy field in ambient condition and with supplemented free air carbon dioxide enrichment (FACE, CO2concentration + 200 μmol mol − 1), in order to evaluate the impact of rising atmospheric carbon dioxide on nutrient competition between rice crop and weed.

Not exact matches

For several hours each day, unbeknownst to those employees, the researchers raised and lowered the amount of carbon dioxide in the air, and then tested everyone on nine different kinds of cognitive ability, like responding to a crisis, strategic thinking and applying their knowledge to a practical task.

Even though the BFR will spew out tons of the greenhouse gas carbon dioxide, the impacts may not be much greater than current global air travel (depending how many flights end up happening).

Once carbon dioxide rises to 1 percent of the air, it can make the body feel drowsy.

A group of scientists from Max Planck Institute for Chemistry and Johannes Gutenberg University of Mainz in Germany recently found that they were able to identify what kind of films a group of subjects viewed — whether it was funny, sad or suspenseful — based on the different combinations of chemicals, or peaks of one in particular, such as carbon dioxide, that were found in the air in the theater.

Air - recycling systems that can reliably scrub carbon dioxide and provide enough oxygen for humans during a long - duration spaceflight (the flight to Mars takes nine months).

Landscaping around the business property takes unhealthy carbon dioxide out of the air and replaces it with clean oxygen.

While U.S. power plants have limits on other air - born pollutants — like nitrogen and sulfur oxides that cause acid rain — there haven't been limits, until now, on the levels of carbon dioxide emissions that power plants can emit.

The Obama administration has turned to the Environmental Protection Agency to use the Clean Air Act to regulate carbon dioxide emissions from the power industry through the Clean Power Plan.

The system processes 500,000,000 data points each day on indoor environmental quality, including comfort measures of temperature, humidity, noise, and light, and air pollutants like carbon dioxide and particulate matter.

We need to be vigilant to keep our land, air, and waters free of real pollution, particulates, heavy metals, and pathogens, but carbon dioxide (CO2) is not one of these pollutants.

The current Wikipedia entry on air pollution, for example, now asserts that pollution includes: «carbon dioxide (CO2)-- a colorless, odorless, non-toxic greenhouse gas associated with ocean acidification, emitted from sources such as combustion, cement production, and respiration.»

Greg — I can use a couple sensors and show you the partial pressure of oxygen, nitrogen, carbon dioxide, etc. in the «air».

• We are increasing the amount of carbon dioxide in the air, causing changing climatic conditions and global warming.

The only thing «prayer» changes is the carbon dioxide content of the air around the person «praying».

It is believed that the air was thicker and contained higher amounts of oxygen and carbon - dioxide.

In any community of plants and animals, the basis of the life of the community life is the plants that convert the energy from the sun, the minerals from the soil and the carbon dioxide from the air into plant tissue.

The destruction of forests causes an increase in carbon dioxide in the atmosphere due to the decomposition and burning of the forest and the fact that there are fewer trees to remove carbon dioxide from the air,

The TL; DR version: it's a style of farming that removes carbon dioxide from the air through agriculture.

During the first part of baking, before the yeast is killed, the dough will rise as you get a last bit of carbon dioxide being released and expanding the air pockets.

Rainforests purify air and water and absorb carbon dioxide — that makes them our greatest allies in the fight against climate change.

They are one of the world's primary carbon reservoirs, absorbing carbon dioxide from the air, storing it, and generating oxygen.

In a large, sterilized jar (or several small ones), pack in the vegetables trying to avoid any air pockets, making sure to leave a few inches of space at the top of the jar for carbon dioxide.

The nanos clean the carbon dioxide out of the air and bring me food, but the only food they know how to synthesize is granola bars.

A possible cause of SIDS is thought to be an infant's «re-breathing» exhaled air (carbon dioxide) that becomes trapped in pillows or soft bedding close to their face, or around their nose and mouth.

Since the 1960s, the amount of methane in the air has increased by 1 % per year — twice as fast as the build up of carbon dioxide.

The holes in these inserts allow air to flow through the bumper, reducing the risk of carbon dioxide rebreathing which is thought to be a cause of SIDS.

It has been widely posited that SIDS is caused when a baby rebreathes its own carbon dioxide, the «stale air hypothesis.»

Ceiling fans not only protect your baby from overheating - a known risk factor associated with SIDS - but can also improve air circulation, whisking recently exhaled carbon dioxide up and away from your sleeping baby and showering them with cool, fresh air.

As a result, the child «rebreathes» his own carbon dioxide rather than breathing in oxygen - rich fresh air, and dies.

He could suffocate, or rebreathe his own air, which can cause a dangerous buildup of carbon dioxide.

If a baby gets his face up against a bumper he can rebreathe exhaled carbon dioxide instead of fresh air.

If this happens, the child can «rebreathe» his own carbon dioxide rather than breathing in oxygen - rich fresh air.

you're making water and carbon dioxide which just gets quickly released into the air..

Rebreathing exhaled carbon dioxide trapped near an infant's airway by bedding has been suggested as a possible mechanism for the occurrence of SIDS in at - risk infants and may occur with the use of soft bedding, covering the head during sleep, and use of the prone sleep position.9 - 12 Inadequate ventilation might facilitate pooling of carbon dioxide around a sleeping infant's mouth and nose and might increase the likelihood of rebreathing.13, 14 Increased movement of air in the room of a sleeping infant may potentially decrease the accumulation of carbon dioxide around the infant's nose and mouth and reduce the risk of rebreathing.10 A recent study15 showing a significantly reduced risk of SIDS associated with pacifier use further supports the importance of rebreathing as a risk factor for SIDS.

Soft bedding can pose an unnecessary suffocation hazard to children, as well as limit fresh air causing a potentially fatal buildup of exhaled air (carbon dioxide) that when re-breathed is one of the leading cause of SIDS.

The design is made with consideration to not trap used air (breath; carbon dioxide) unlike most bassinets and moses baskets and infant and baby loungers.

The air pockets in BreathableBaby mesh baby products help reduce the risk of suffocation and re-breathing carbon dioxide, allowing maximum air to flow.

Five of the DfT's seven public sector agreements were missed, with two congestion targets, public transport use, air quality and carbon dioxide emissions targets all missed.

The only real climate change solutions that I have seen are to reduce carbon dioxide in the air by having human activity emit less of it.

Will all that extra carbon dioxide in the air be good for certain types of flora?

And while salt in the air can accelerate corrosion, Ramirez says, it also adds to a protective covering on the statue called a patina, the result of oxygen, carbon dioxide, and other compounds reacting with the copper.

The students are given four options: From sunlight, from oxygen in the air, from minerals in the soil or from carbon dioxide in the air.

That filing, which has been called the most important environmental lawsuit ever to go to the Supreme Court, demanded that the Environmental Protection Agency regulate carbon dioxide (CO2) as a pollutant under the Clean Air Act — something the plaintiffs saw as a very reasonable request since the Clean Air Act defines a pollutant as a substance that is damaging to humans.

Paris 2015 may be the last chance to agree on global carbon dioxide reductions before there are so many greenhouse gases in the air and the oceans that things get really nasty.

In addition to the isotope concentration, the air bubbles trapped in the ice cores allow for measurement of the atmospheric concentrations of trace gases, including greenhouse gases carbon dioxide, methane, and nitrous oxide.

In addition to temperature, wind, and solar radiation data, the Pacific saildrones are measuring how the ocean and air exchange gases like carbon dioxide and oxygen, and they are using Doppler instruments to gauge currents coursing up to 100 meters below the surface.

Without this fixed nitrogen, phytoplankton could not absorb carbon dioxide from the air, a feat which is helping to check today's rising carbon dioxide levels in the atmosphere.

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).