Sentences with phrase «more black soot»

I have a totally speculative pet hypothesis: this was the early days of the industrial revolution and much more black soot was being produced by coal fires in the cities.

Not exact matches

Cyclist commuters in London had more than twice as much black soot in their lungs than did walking commuters.

The more coal and oil burned, the more black spheres formed, making such soot the perfect record of a swelling fossil - fuel pyromania.

A new study confirms that black carbon — more commonly known as soot — is a significant player in global warming.

The fastest and most famous case of evolution by natural selection is the case of the British peppered moths: In the 19th century, as mills and factories began to darken the air with soot, a rare all - black mutant quickly became more common in Britain than the normal white moth with black spots because it was less conspicuous to predators.

London's Black Cabs exposed passengers to an average of more than 108,000 ultrafine particles — microscopic soot 10,000 times smaller than a centimeter that is particularly dangerous because of its ability to penetrate deep into the lungs — for every cubic centimeter traveled.

I guess I am surprised that with better understanding of the importance of water vapor feedback, sulfate aerosols, black carbon aerosols, more rapid than expected declines in sea ice and attendant decreases in albedo, effects of the deposition of soot and dust on snow and ice decreasing albedo, and a recognition of the importance of GHGs that were probably not considered 30 years ago, that the sensitivity has changed so little over time.

The process also creates tiny bits of soot, called black carbon, and traces of harmful substances, known as brown carbon, which together cause more global warming per unit weight than other human - associated carbon sources.

I guess I am surprised that with better understanding of the importance of water vapor feedback, sulfate aerosols, black carbon aerosols, more rapid than expected declines in sea ice and attendant decreases in albedo, effects of the deposition of soot and dust on snow and ice decreasing albedo, and a recognition of the importance of GHGs that were probably not considered 30 years ago, that the sensitivity has changed so little over time.

Alternative, more indirect, but not for that reason ultimately not effective approaches must be developed, including «demonstration» projects which show that people working together an have a positive effect on certain contributors to warming, including black soot produced by millions of stoves that use dung for fuel.

According to the scientist conducting the study, the soot — which comes from the Chindia belt, as well as the Western world — and which is black, absorbs heat from the sun more readilly than white ice, thereby accelerating the warming and melting of the glaciers even more than the Greenhouse effect.

Learn more about black carbon by watching Stop Soot: The Easiest Way to Slow Climate Change, an animated video.

All linked (cleverly) to black soot issues and other more populist Green concepts.

Human emissions are quite different in composition as some also contain brown / black soot which may absorb more sunlight and thus may have more a warming than a cooling effect (especially over India).

New research reveals insights into how black carbon aerosols impact cloud formation RENO — It is widely known that black carbon, or soot, aerosol particles emitted... Read more

The black soot soaks up heat and when the snow gets dirty it melts more quickly and, at such high altitudes, the effect is magnified.

But if a little more energy is absorbed, then CO2 is acting like a little black soot in the atmosphere and it will, in turn, radiate more toward space as a black box would from the added heat and this might compensate for the change in albedo.

They concede that some of the more spectacular solutions proposed, such as melting the Arctic ice cap by covering it with black soot or diverting arctic rivers, might create problems far greater than those they solve.

Carbon soot gets blame for Arctic Ice Melt: Oil industry and household stoves speed Arctic thaw Gas flaring by the oil industry and smoke from residential burning contributes more black carbon pollution to Arctic than previously thought — potentially speeding the melting of Arctic sea ice and contributing to the fast rate of warming in...

Making diesel an even more attractive candidate for attack is the fact that reducing much of its black carbon emissions might simply be a matter of upgrading old, soot - spewing engines with newer technology.

It's even more attractive because black carbon washes quickly out of the atmosphere, and so reducing soot emissions would lead to a fast fall in the concentration of black carbon in the atmosphere.

Black carbon — soot — is a global - warming agent the immediate... Read more →

For instance, Bond et al. report that black carbon aerosol, or soot, is second only to carbon dioxide as the substance emitted by human activity that has the greatest warming influence on the climate — contributing a quarter (or perhaps even a bit more) to the current overall anthropogenic warming effect.

With that comes more black carbon air pollution from ships — soot to you and me — and, that means already disproportionately high levels of warming will increase and with those, more ice melting.

More on the important role that black carbon soot plays in increasing global warming and what can be done about it: A new study published in Nature Geoscience found that the amount of solar radiation absorbed increased as the ratio of black carbon to sulphate rose.

A lot of folks, including myself, think that the recent melting of Arctic sea ice and rising Arctic temperatures is more attributable to Asian black carbon pollution than to CO2 and greenhouse gas warming (particularly since similar warming and sea ice melting is not seen in the Antarctic, where there is not a problem with soot pollution).

That is 227 million tonnes of carbon per year and considered to be more than averagely harmful because of the black carbon (soot) component.