Sentences with phrase «released by the combustion»

Ten years later, no one knows what was in the cloud of gases released by the combustion of all that jet fuel and building material but science has revealed what was in the dust — cement, steel, gypsum from drywall, building materials, cellulose from paper, synthetic molecules from rugs, glass fibers and human hair from the long decades of the two towers» use, among other items.

When fully black, the material is gathered up and the energy is released by combustion on the application of a match.

Researchers are confident that they understand the cycle of Ice Ages, and they also have a clear idea that the biosphere plays a hand in keeping the planet at liveable temperatures, but they also know that the high altitudes are more than usually affected by climate change driven by ever - higher ratios of greenhouse gases released by the combustion of fossil fuels by seven billion humans.

During that same period, 282 PgC were released by combustion of fossil fuels, and 5.5 additional PgC were released to the atmosphere from cement manufacture.

There is a general failure to comprehend that the question of adiabatic flame temperature — of the energy released by combustion — goes to the «lag» in warming of the atmosphere.

Repeated drought and tree loss mean that there is increasing risk that the forest may one day cease to be a «sink» for atmospheric carbon released by the combustion of fossil fuels.

Not exact matches

Even if the ambitious targets of the world's biggest economies are met, and internal combustion engines give way to electric or other zero - emission vehicles by 2040, the total impact on global carbon dioxide emissions will be minimal, according to a new study released Tuesday.

In a modeling study of coal, oil, and natural gas, Zhang and Caldeira compared the warming caused by combustion to the warming caused by the carbon dioxide released by a single instance of burning, such as one lump of coal, and by a power plant that is continuously burning fuel.

The team then went a step further, putting the rock and soil samples in a controlled combustion chamber that released carbon at different temperatures, allowing the carbon molecules to be sorted by their latent energy, an indicator of their chemical structure, and the amount of radiocarbon they contain.

Over the lifetime of the released CO2, the trapped heat exceeds the heat released during combustion by a factor of more than 100,000, researchers report online June 2 in Geophysical Research Letters.

«This will release an estimated 87 to 130 billion tonnes of carbon by 2100, which is greater than the amount of carbon that would be released by 13 years of global fossil fuel combustion.

«Due to human activities such as the combustion of fossil fuels and deforestation, and the increased release of CO2 from the oceans due to the increase in the Earth's temperature, the concentration of atmospheric carbon dioxide has increased by about 35 % since the beginning of the age of industrialization.»

Climate change is driven by human activity — chiefly the combustion of fossil fuels and changes in land use — and forests and other natural ecosystems play a powerful role in both soaking up the greenhouse gases released by human economic activity and at the same time sheltering many of the other 10 million or so species that share the planet.

«In considering the question of human activity and climate change it is essential to distinguish between global warming, which is a progressive increase in the annual mean global temperature, and human - activity - induced greenhouse warming, as may, for example, be caused by the release of greenhouse gases into the atmosphere as a result of fossil fuel combustion or deforestation.»

«Over lifetime of CO2 in atmosphere, the CO2 - rad - forcing exceeds energy released upon combustion by > 100,000 times.»

It was spurred by Microsoft's quest to combat climate change by using electricity that does not generate the carbon emissions released by fossil - fuel combustion.

Although it is released by human activities through the combustion of fossil fuels, it is also formed by certain natural processes (see carbon cycle).

But it's also the by - product of fossil fuel combustion, and when a refinery or power plant reduces its greenhouse gas emissions (by becoming more energy - efficient, for example), it also releases fewer smog - forming chemicals like nitrogen oxides, less of the sulfur dioxide and soot that can irritate lungs and cause respiratory disease, and fewer toxic emissions linked to cancer and neurological disorders.

But the implication is that the current drought may be worse than normal because of the release of greenhouse gases into the atmosphere by the combustion of fossil fuels on a colossal scale: the researchers make the link only tentatively.

And there are excellent reasons to continue and expand strict controls of the * real * crap that gets released into the air by the combustion of these things.

Fires end up contributing to warming by releasing carbon dioxide during combustion.

But what happens, and how swiftly it happens, depends on human response to global warming, driven by the combustion of fossil fuels and the release of the greenhouse gas carbon dioxide into the atmosphere.

The study, which was released in the Annals of the New York Academy of Sciences, tallied the economic, health and environmental costs associated with each stage in the life cycle of coal — extraction, transportation, processing, and combustion - and estimated those costs, which are borne by the public at large, to be between $ 175 billion and $ 500 billion dollars annually.

Most scientists believe global warming is mainly caused by carbon dioxide released into the atmosphere through the combustion of fossil fuels.

Since the beginning of the Industrial Revolution about one - third of the carbon dioxide, CO2, which has been released into the atmosphere from fossil fuel combustion and land use change has been absorbed by the oceans, where it damages coral reefs.

This stored energy will be released with time by the combustion or the moldering process but this will take its time.

By pursuing an inside - the - fence policy, EPA Administrator Scott Pruitt could release a Trump - era rule that forces utilities to improve power plant combustion efficiency but wouldn't do much to require states to change their power supply or reduce carbon emissions.

¶ ¶ 38 («when used -LSB-,]... fossil fuels release greenhouse gases), 39 («use of fossil fuels emits carbon dioxide»), 45 («emissions resulting from human activities are substantially increasing... greenhouse gases»), 48 («increase in atmospheric carbon dioxide caused by the combustion of fossil fuels»), 52 («fossil fuels -LSB-,]... when combusted, emit carbon dioxide»).

CO2 released into the atmosphere by fossil - fuel combustion remains detectable as an excess concentration for centuries.

Old stoves and fireplaces are inefficient; if you're going to be burning wood to keep warm during the winter, the green thing to do is to make sure that as much of the heat that is produced by combustion is released into your home and isn't going out the chimney.