Sentences with phrase «human combustion of»

Since the icecap is melting as the atmospheric levels of the greenhouse gas carbon dioxide rise, and global temperatures rise with them, as a consequence of the human combustion of fossil fuels, the rate at which summer meltwater gets into the oceans becomes vital to climate calculations.

«Human combustion of fossil carbon sources helps restore a balance to the global carbon cycle,» says Moore.

Sea level rise is happening everywhere, as ice caps and glaciers melt and the seas rise in response to global warming driven by prodigal human combustion of fossil fuels, and researchers have advanced from general warning to the kind of detail that could help city and state planners prepare to cope with flood risks.

But these 139 nations account for perhaps 99 % of all the carbon dioxide emitted by human combustion of fossil fuels.

In fact, it clears up a long - standing uncertainty: just how much global warming − driven by prodigal human combustion of fossil fuels − is changing the rhythms of life in one zone of the planet.

But a natural cycle of change in the North Atlantic may for the time being have countered the consequences of human combustion of fossil fuels, the rise of greenhouse gases and other impacts in the Arctic.

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.

The heat forcing from human combustion of fuels, nuclear reactions, etc. can be estimated fairly accurately.

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.

Climate change is happening, being driven by the human combustion of fossil fuels at unprecedented rates for more than a century.

The implication is that even though other teams have repeatedly warned that the world's reefs are in peril as the world warms because of ever - greater ratios of greenhouse gases in the atmosphere, as a consequence of human combustion of fossil fuels at a profligate rate, the world's great reefs may survive for perhaps another century, rather than perish within the next 50 years.

For decades, climate scientists have predicted that rising levels of atmospheric greenhouse gases from the human combustion of fossil fuel could lead to global warming, and that warming would be accompanied by more frequent or more violent storms.

Vaughan's projection («scuse me, «extrapolation») of 1040 ppmv by 2100 is physically impossible to reach from human combustion of fossil fuels, even if we burned them all 100 % up by 2100.

In this case, future CO2 level from human combustion of fossil fuels would be constrained to the same as occurred in the past or ~ 110 ppmv above today's level = a bit more than 500 ppmv, rather than a bit less than 1000 ppmv).

A climate science which is «uncertain» can still show that climate change is a «serious, pressing threat», since «threat» imports uncertainty, and also still allow for the proposition that human combustion of fossil fuels does not significantly cause that climate change nor contribute to that threat.

that «Human combustion of fossil fuels is significantly causing that climate change» is also true, then many, perhaps most, people will accept that there is a need to «reduce greenhouse gas emissions and build out clean energy» even if it will «cost consumers money, decrease energy security and destroy jobs».

So, while Co2 can be shown to radiate heat in a lab, the effect of human combustion of fossil fuels contributing roughly 3 % of the.04 % of the atmospheric Co2 levels will have, as I think you and others here have stated, a measured effect indistinguishable from zero.

The atmospheric change is due to mainly to human combustion of fossil fuels, but also to large - scale tropical deforestation and wetland removal.

Not exact matches

I also know what I know, and know what I see and believe... spontaneous combustion of gases in space will never explain the universe or human consciousness as we know it... we can not define «nothingness».

The greatest human influence on the sulfur cycle comes from industrial activity, mainly the combustion of coal and oil and the smelting of sulfur - bearing metallic ores.

Chlordane, toxaphene, DDT and PCBs are all examples of persistent organic pollutants — chemicals that were once widely used in agriculture and manufacturing (or accidentally produced through industrial processes or combustion) but are now banned due to their adverse effects on human health and the environment.

It then combines with pollutants from combustion — mainly nitrogen oxides and sulfates from vehicles, power plants and industrial processes — to create tiny solid particles, or aerosols, no more than 2.5 micrometers across, about 1/30 the width of a human hair.

At thermoneutrality, no extra food combustion is required to counteract heat loss, and the degree of insulation would thus not play any role for the metabolic balance equation for normal - life humans.»

In addition, the ocean has absorbed 30 percent of the carbon dioxide associated with human activities, lessening the climate effects of fossil fuel 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.

«It's one of the clearest examples of how humans are actually changing the intensity of storm processes on Earth through the emission of particulates from combustion,» said Joel Thornton, an atmospheric scientist at the University of Washington in Seattle and lead author of the new study in Geophysical Research Letters, a journal of the American Geophysical Union.

In particular, human - induced aerosols like soot and combustion particulates actually work the opposite, reducing the amount of precipitation clouds can form.

Next, Doney (p. 1512) reviews how the chemistry of the oceans is changing, mostly due to human fossil fuel combustion, fertilizer use, and industrial activity.

In this study, Horney and colleagues focused on PAHs, which are a product of combustion from human activities such as petroleum consumption in transportation or natural processes such as wildfires.

Nevertheless, Streets considered the endeavor important because China is full of the two biggest contributors to human - generated mercury, metal smelting and coal combustion.

The precursors of acid rain formation result from both natural sources, such as volcanoes and decaying vegetation, and human - made sources, primarily emissions of sulfur dioxide and nitrogen oxide resulting from fossil fuel combustion.

Bigons could be responsible for ball lightning, migraines, the unexplained failures of equipment and soufflés, the spontaneous human combustion — I don't know, maybe earthquakes even, Manqué says.

Whereas other actuators powered by electricity or combustion could cause damage to humans or their surroundings, loss of vacuum pressure in VAMPs would simply render the actuator motionless.

These gases come from human activities such as combustion of coal and oil as well as natural sources such as emissions from plants.

Over many decades lead (Pb) has been released into the atmosphere due to human activities, such as combustion of leaded fuel.

In 1996, when climate research was more certain about the link between fossil fuel combustion and climate change than during the time of Shaw's memo, Exxon's new chairman and chief executive Lee Raymond said in a speech in Detroit: «Currently, the scientific evidence is inconclusive as to whether human activities are having a significant effect on the global climate.»

Human influences on the climate (largely the accumulation of CO2 from fossil fuel combustion) are a physically small (1 %) effect on a complex, chaotic, multicomponent and multiscale system.

Human - caused climate change has been occurring over the last 200 yr, largely because of the combustion of fossil fuels and subsequent increase of atmospheric CO2.

In order to sustain a very high rate of metabolic combustion and heat production compared to humans, birds must eat up to 17x or more the quantity of energy than a human, relatively.

One boyfriend said he was seriously worried about spontaneous human combustion (he did a lot of research into this phenomenon, which freaked me out more than it offended me.)

That went out the window this year despite increasing proclamations about the looming deaths of the internal combustion engine and the human - driven automobile.

David Buckland confronts our ever - growing human infrastructure by displaying an internal combustion engine in the form of a ready - made.

I just go to the section where they get into discussing Arctic seabed methane in more detail, and the conclusion of that section is actually: «In summary, the ocean methane hydrate pool has strong potential to amplify the human CO2 release from fossil fuel combustion over time scales of decades to centuries.»

It's good old fashioned black carbon soot — a visible pollutant with measurable effects on human health both in poor places, where it comes from cooking or heating using coal, firewood or dung, and rich countries, where it is produced mainly through the combustion of diesel and similar fuels and from some industries.

While the best - known pollution in Mexico is Mexico City's air, which mainly comes from the combustion of vehicle fuel, it's not the only place with a problem or the only kind of pollution in circulation posing a serious risk to human health.

He explained that an article I wrote in 2002 about fires, both natural and human caused, smoldering in coal seams around the world, inspired him, while he was completing a doctorate at the University of California, Berkeley, to switch from studying risks posed by smoldering combustion in spacecraft to those back on Earth.

What makes the climate predicament even tougher is the uneven nature of human development, and the reality that nearly all of the growth in emissions of greenhouse gases is coming from a near - inevitable burst of fossil fuel combustion in fast - growing developing countries.

You then take that ethanol and burn it into an internal combustion engine that is maybe 20 - 30 % efficient, and you end up with a tremendous amount of wasted energy... And you've used up farmland that could instead have grown food for human consumption, increasing food prices by reducing supply.

Most of these perturbations, tied either directly or indirectly to human fossil fuel combustion, fertilizer use, and industrial activity, are projected to grow in coming decades, resulting in increasing negative impacts on ocean biota and marine resources.

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.