Sentences with phrase «areas increasing the albedo»

If we really put the nuts and bolts in place, we can get close to 100 per cent of urban areas increasing the albedo of surfaces.»

Not exact matches

This chemical weathering process is too slow to damp out shorter - term fluctuations, and there are some complexities — glaciation can enhance the mechanical erosion that provides surface area for chemical weathering (some of which may be realized after a time delay — ie when the subsequent warming occurs — dramatically snow in a Snowball Earth scenario, where the frigid conditions essentially shut down all chemical weathering, allowing CO2 to build up to the point where it thaws the equatorial region, at which point runaway albedo feedback drives the Earth into a carbonic acid sauna, which ends via rapid carbonate rock formation), while lower sea level may increase the oxidation of organic C in sediments but also provide more land surface for erosion... etc..

re 454 wili — of course, introducing additional feedbacks like vegetation albedo (boreal forests replacing tundra) and methane hydrate / clathrate, etc, could concievably make it runaway — again, limited by C reservoir and land area / latitude ranges (and some places would probably see a surface albedo increase).

CO2's effect of stimulating plant growth and increasing plant tolerance of aridity contributed to revegetating large areas of land that were desert at the LGM, compounding the effects of an increase in atmospheric humidity, reduced land / ocean surface ocean ration, and increased warmth, all of which combined caused the reduction of airborne dust and atmosperic albedo.

If CO2 in the Anthropocene atmosphere contributes to re-vegetating currently arid areas as it did post-LGM, we should expect an even greater warming feedback from CO2 than is assumed from water vapor and albedo feedbacks, due to decreased global dust - induced albedo and increased water vapor from transpiration over increased vegetated area.

The albedo enhancement over the cloud - rain areas tends to increase the net (IR + albedo) radiation energy to space more than the weak suppression of (IR + albedo) in the clear areas.

They estimate that increasing the reflectance — commonly known as albedo — of every urban area by 0.1 will give a CO2 offset between 130 and 150 billion tonnes.

Albedo is typically decreased to space as much (or slightly more) than IR is increased to space in the broad scale clear and partly cloudy areas.

Finally, at any given moment the ice tends to hang out where the sun can't reach... and ice increases in those areas don't change the albedo.

(7) A requirement that building retrofits conducted pursuant to a REEP program utilize, especially in all air - conditioned buildings, roofing materials with high solar energy reflectance, unless inappropriate due to green roof management, solar energy production, or for other reasons identified by the Administrator, in order to reduce energy consumption within the building, increase the albedo of the building's roof, and decrease the heat island effect in the area of the building, without reduction of otherwise applicable ceiling insulation standards.

Conversely when the solar magnetic field is weak, there is no barrier to cosmic rays — they greatly increase large areas of low - level clouds, increasing the Earth's albedo and the planet cools.

But the «total power the earth receives from the sun» would still be less, if the higher albedo from a increased area polar icecap were taken into account.

In my experience that's usually the biggest variable, but there could be many reasons for your results to vary — puddling resulting in increased splashing on one side or another, snow removal activities or pavement salting that occurred unbeknownst to you, albedo alterations due to dirt that preferentially affect one area more than another, and so on.

Even in the absence of such an index, I believe it's well established that tree / plant area has increased in the last 30 years or so, in which case land use forcing (or at least the albedo part) would have been getting less negative for the period, adding to the warming trend; and that's without counting asphalt which obviously has greater sunlight absorption than the average land it replaces (and asphalt - covered surface has kept growing throughout this period).

2) We have INCREASING POSITIVE feedback effects from (a) melting tundra, (b) melting melting hydrates in the oceans, (c) lower reflectivity (albedo) of the Arctic itself, not to mention its next door neighbor Greenland, (d) increased fires in northern Asia and North America which will further exacerbate albedo, (e) LESS ICE AREA to reflect sun in the Arctic... and thus allow that nice dark water to absorb more and more sun.

Might I suggest that everyone read the proposal by Latham, Salter et al about using atomised water sprays — more hygroscopic nuclei in deficient areas of the ocean should raise albedo by increasing stratocumulus cover in the boundary layer — to cool selected areas?

Since the TAR, increasing evidence has emerged indicating a more rapid disappearance of snow and sea - ice cover in some areas (e.g., Siberia, Alaska, the Greenland Sea), and consequent changes of albedo may be leading to further climate change (e.g., Holland and Bitz, 2003).