Sentences with phrase «atmosphere by combustion»

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.

Not exact matches

«Ultimately, the warming induced by carbon dioxide over the many thousands of years it remains in the atmosphere would exceed the warming from combustion by a factor of 100,000 or more,» Caldeira said.

However, the Clark School researchers say blue whirls could improve remediation - by - combustion approaches by burning the oil layer with increased efficiency, reducing harmful emissions into the atmosphere around it and the ocean beneath it.

Human - generated aerosols can enter the atmosphere directly, as is the case with soot emitted by internal combustion engines in cars and trucks, he explains.

The achievement could be revolutionary, enabling creation of a closed system in which carbon dioxide emitted by combustion was transformed back into fuel instead of adding to the greenhouse gases in the atmosphere.

Simon Edwards (# 6): Yes, there is a certain amount of heat added to the atmosphere & ocean by the combustion of fossiel fuels as well as other heat sources (e.g. nuclear).

The effect of both CO2 and aerosols by mass in the atmosphere are not linear and do not follow each other in lock step, hence to claim that aerosols would have a cancelling effect no matter what the rate of fossil fuel combustion would be a false assumption.

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.

«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.»

On the naïve and scientifically silly assumption that the only way that plant - based carbon can get into the atmosphere is by people burning fuels, they exult that here indeed is the smoking gun: Decreases of C13 in the atmosphere mean that our sinful combustions are clearly identifiable as major contributors to the 100 ppm increase in CO2 since 1850.

In fact, after 2050, Hansen's pathway (which, again, we used as the basis of our own) assumes that enhanced sinks will draw more CO2 out of the atmosphere than is emitted by fossil fuel combustion or deforestation, yielding a net budget of about negative 150 gigatonnes of CO2 over the second half of the 21st century.

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

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.

Some moisture, however, is added to urban atmospheres by the many combustion sources.

Both disclosures are consistent with what scientists had expected from climate change, driven by global warming as a consequence of the profligate combustion of fossil fuels that dump ever greater levels of greenhouse gases in the atmosphere.

That is not true, the dinosaurs were killed by the combustion of the atmosphere following the impact and by the impact winter due to dust and sulphates in the atmosphere causing a deep freeze.

«Ultimately, the warming induced by carbon dioxide over the many thousands of years it remains in the atmosphere would exceed the warming from combustion by a factor of 100,000 or more,» Caldeira said.

But the suspicion is that the long - term trend in global warming driven by human combustion of fossil fuels that dump vast quantities of greenhouse gases into the atmosphere must be playing a part.

This is because any net additions of CO2 to the atmosphere resulting from biomass combustion should be captured by analyzing land - use, land - use change activities and their associated effects on terrestrial biomass carbon stocks.

The report, The Human Cost of Weather - Related Disasters 1995 - 2015, is intended to focus attention during the UN climate change conference — which opens in Paris on Monday − on the damage already inflicted by global warming as a consequence of rising levels of greenhouse gases in the atmosphere, in turn as a consequence of the human combustion of fossil fuels and the destruction of the planet's forests.

Extremes of drought and heat present one kind of threat, and long - term climate change − driven by rising greenhouse gas levels in the atmosphere, as a consequence of the combustion of fossil fuels − is another.

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.

Greenhouse gas emissions from coal, gas and oil combustion since the dawn of the 19th century and the coming of the machine - age century have pushed carbon dioxide ratios in the atmosphere from less than 300 parts per million to 400ppm everywhere, and global average temperatures have risen by 1 °C.

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.

The circulation of CO2 in and out of the atmosphere is due mainly to the photosynthesis which takes CO2 molecules out from the atmosphere and the returning of these molecules to the atmosphere by means of combustion and moldering.

I think that it's quite possible that the «equalization» you mention will involve severe harm to our civilization, economy, culture and well - being, unless we are able to take responsibility for our own actions — and that means we need to stop using the atmosphere as a dump for our combustion by - products.

However, the warming shouldn't be discounted, either; it's ongoing, and will continue as long as we keep treating the atmosphere as a dump for combustion by - products.

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

«I think that the science is inconclusive on this... I personally believe that the solar flares are more responsible for climatic cycles than anything that human beings do and our lunar, our rovers on Mars have indicated that there has been a slight warming in the atmosphere of Mars and that certainly was not caused by the internal combustion engine.»