Sentences with phrase «only carbon dioxide and water»

Not exact matches

Apart from water and carbon dioxide the only resource that comes in from outside is the energy of the sun.

Walter sees the benefits of using methane as an energy source as twofold: «Not only does it prevent a potent greenhouse gas from entering the atmosphere by converting it to weaker greenhouse gases — water vapor and carbon dioxide — but using it on - site would also reduce the demand for other fossil - fuel sources.»

«Streams and rivers are not only passive conduits of water and terrestrial carbon dioxide, but also function as reactors that generate and release carbon dioxide during transport downstream,» said Erin Hotchkiss.

In addition, a supercritical turbine could fit into a directly heated cycle, where a fuel like natural gas burns in the presence of pure oxygen inside the turbine, creating only water and carbon dioxide as waste.

The spacecraft's sensitive spectrometer was able to register the chemical signatures not only of water vapor but also of hydrogen cyanide, carbon monoxide, and carbon dioxide — all precursors of the more complex molecules that scientists think eventually gave rise to life on Earth.

That deep water is not only rich in nutrients, it also has relatively high concentrations of carbon dioxide, both because it is cold (cold water can absorb and hold more carbon dioxide than warm water) and because the decomposition of organic matter that sinks into the depths releases carbon dioxide.

Launched in July 2010, JCAP aims to develop an efficient, cheap, and durable system for producing fuels using only sunlight, water, and carbon dioxide as inputs.

The impacts of ocean acidification, which is caused when carbon dioxide dissolves into seas and reacts with water, is a topic that scientists and governments are only just starting to grasp in meaningful ways.

This copper catalyst was subsequently introduced into an artificial photosynthesis system to convert carbon dioxide and water into ethylene using only solar energy.

Plants can gain from more carbon dioxide, but only «if other resources like water and nutrients are not limited», which is rarely the case.

The EPA did take one tiny step — among the Bush administration's only ones to date — toward tackling global warming last week when it released regs governing how companies may pump and store carbon dioxide underground (to limit climate change) without violating the Safe Drinking Water Act.

Current polar orbiting satellites can only provide a single snapshot of carbon dioxide uptake and water release each day, at the same time of day, so scientists have to estimate how that one - time snapshot translates over the course of the entire day.

Increased carbon dioxide in the atmosphere not only alters the ocean's chemistry, it's increasing the temperature of the atmosphere and warming waters, too.

If we pin atmospheric carbon dioxide concentration to right about 300 to 320 ppm, we are looking at 20 - 30 thousand years of stable climate, with huge fresh water reserves, and we are only about half way into a global mass extinction.

Reasoning that, because it fluctuated daily, water vapour was continually recycling itself in and out of the atmosphere, he turned his attention to carbon dioxide, a gas resident for a long time in the atmosphere whose concentration was only (at that time) dramatically changed by major sources such as volcanoes or major drawdowns such as unusual and massive episodes of mineral weathering or the evolution of photosynthetic plants: events that occur on very long, geological timescales.

Algae are incredibly easy to cultivate, requiring only sunlight, carbon dioxide (CO2) and water, offering a remarkably simple way of producing energy.

If we pin atmospheric carbon dioxide concentration to right about 300 to 320 ppm, we are looking at 20 - 30 thousand years of stable climate, with huge fresh water reserves, and we are only about half way into a global mass extinction.

Globally, peatlands store about 30 % of the world's soil carbon in only 3 % of its land area, but this carbon is vulnerable to the fast burn of fires, and may be released in the form of carbon dioxide if the water balance and natural vegetation are altered.

It is the only technology that acts to directly reduce the temperature of the ocean (it was estimated one degree Fahrenheit reduction every twenty years for 10,000 250 MWe plants in» 77), eliminates carbon emissions, and increases carbon dioxide absorption (cooler water absorbs more CO2) at the same time.

Water vapor is responsible for 80 percent of that effect, and carbon dioxide for only 10 percent, with methane, ozone, and so forth accounting for the remainder.

As any suburbanite knows, lush green grass requires not only water, carbon dioxide and sunshine, but also a supply of nutrients, among which nitrogen and phosphorous are the most important.

According to Wikipedia they explain the RE by saying: «If CO2 in the atmosphere is increased by one part per million, the CO2 in the ocean is increased by only a tenth of a part per million, because of the way that the carbon dioxide in the water is partitioned between carbonate ions and bicarbonate ions and free CO2.

Once again water vapor (H2O) does exactly the same thing; only moreso than carbon dioxide; and it is also much more abundant in the atmosphere; even over the most arid deserts.

JCAP seeks to discover new ways to produce energy - dense fuels, such as hydrogen and carbon - based fuels, using only sunlight, water, and carbon dioxide as inputs.

[6] The difference is that while water vapour remains in the atmosphere only a few days or weeks, and hydrogen gas about two years, carbon dioxide lingers for more than a century.

Most of your readers are probably unaware of the fact that doubling carbon dioxide in itself only produces a modest warming effect of about 1.2 C and that to get dangerous warming requires feedbacks from water vapour, clouds and other phenomena for which the evidence is far more doubtful.

In his presentation, Prof. Ashfaq Ahmad Chattha mentioned that not only carbon dioxide level but temperature was also rising due to climate change, which increases water requirement for the crops and in case of water non-availability results in loss of production.

Supercritical stations burn less coal per megawatt - hour produced and so benefit the environment and the electricity consumer.A modern, highly efficient, supercritical coal - fired station with stack gas cleanup is very clean indeed, essentially emitting only water vapor, carbon dioxide and nitrogen.

Remember that this is the same Professor who believes that ``... the Great Barrier Reef will benefit from rising seas, that there is no correlation between carbon dioxide levels and temperature, that only 0.1 % of carbon dioxide emissions are due to human activities, and that 96 % of the greenhouse effect is due to water vapour.»

Reasoning that, because it fluctuated daily, water vapour was continually recycling itself in and out of the atmosphere, he turned his attention to carbon dioxide, a gas resident for a long time in the atmosphere whose concentration was only (at that time) dramatically changed by major sources such as volcanoes or major drawdowns such as unusual and massive episodes of mineral weathering or the evolution of photosynthetic plants: events that occur on very long, geological timescales.

«A modern, highly efficient, supercritical coal - fired station with stack gas cleanup is very clean indeed, essentially emitting only water vapour, carbon dioxide and nitrogen.