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White Roofs Could Save a Year's Worth of Global CO2 Emissions


An infographic created by the White Roof Project, an initiative that wants to help cover the world's black roofs with white paint, illustrates some impressive statistics about the the best choice cialis online pharmacy power of prescription tramadol buy cheap white roofs, including the fact that the transition from black to white roofs could prevent the emission of 24 billion metric tons of CO2, the same amount of CO2 emitted globally in 2010.

The project says that if we covered just 5 percent of roofs with white paint per year, we'd be done by 2030. White roofs can reflect 85 percent of sunlight compare to 20 percent for black roofs and www.americanfoods.com buildings with white roofs stay up to 35 degrees cooler, which means less electricity required for cooling the buildings.  In large cities, white roofs also curb the heat island effect, cooling the city as a whole.

In addition to prices generic cialis the emissions savings, white roofs could save 14 power plants' worth of energy in 11 large cities, save $5 billion in energy costs in the http://www.barefootfoundation.com/cost-levitra U.S., reduce smog, blackout risk and heart-related deaths and Bill Clinton has said it's the quickest, cheapest thing we can do.  So, what are we waiting for?

If you live in NYC, you can volunteer for the White Roof Project or adopt a building.  The project plans to cover the roofs of an entire East Village block in white paint this August.  You can view the entire infographic here.

via GOOD

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written by David Evans, July 25, 2011
Nice idea. Along the same lines we could be looking at lighter-coloured materials for highways and parking lots. Let's not forget, though, that some of 50mg cialis retail price those roofs might be more useful if covered with solar cells.
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written by Barry, July 26, 2011
Imagine if all the data and power transmission lines on the telephone poles had white insulation...
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written by Phil Plasma, July 26, 2011
What about here in Canada where we only get two or three months a year where it is hot enough that having a white roof would be helpful... does it make sense to still do what is the cost of cialis it here?
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Won't this speed up global warming?
written by Susan, July 26, 2011
This suggestion is surely EarthCrime. The roofs will reflect heat back into the atmosphere, whereas dark roofs absorb the www.beverly.org heat and conduct it to ground and the materials of the building itself.

Also, reflecting the energy away is we like it canadian online pharmacy cialis a criminal waste of energy. That energy could have been captured and brand levitra for sale converted into electricity or thermal store.

The white roofs will almost certainly also increase the severity and distribution of extreme thunderstorms in the summer, marshalling more storms into large urban areas.
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white roofs
written by energy consulting, July 26, 2011
I'm amazed to hear about this. I think it's a great idea to paint roofs white, but will it have the same effect in colder countries?
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Not a EatchCrime
written by Matt, July 26, 2011
Painting things white is done to best price for levitra slow Global warming. They are even paint mountains white to stop snow melt.

White reflects the light back into space.
Black absorbs the i want to buy cialis light are radiates heat back. So black increases the amount of heat in the atmosphere.

Time to go to the library and read a little thermoDynamica
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written by Kevin, July 27, 2011
Phil Plasma: That's a good question.

Fortunately, it doesn't look like a problem:

The places where you want to keep buildings cool are near the equator, where painting roofs white has the biggest effect on the Earth's albedo. So it is a double gain - more heat reflected straight out, less cooling required inside.

The places where you want to keep buildings warm are at the higher latitudes. The sunlight is more oblique, and more has already been scattered by the atmosphere. So painting roofs has limited benefit in albedo, and hurts you when it comes to heating. So you don't bother.

So it depends where you are. Anywhere you run a/c much of the year, it is a definite win.
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EPA’s Battle of the Buildings puts a smack-down on energy waste
written by Suzette Riley, July 27, 2011
Check out how some buildings are already saving. Today, the U.S. Environmental Protection Agency’s (EPA) ENERGY STAR program marked the midpoint of its 2011 National Building Competition: Battle of the Buildings. In the first six months of www.marthawashingtoninn.com the competition alone, the competitors together have saved more than $3.7 million on where can i buy levitra utility bills and prevented 18,500 metric tons of CO2 emissions – that’s equal to the electricity used by 2,300 homes annually.

Teams from 245 buildings around the country are going head-to-head in this year’s ENERGY STAR National Building Competition to generic form of viagra see who can reduce their energy use the real cialis online most. The building with the largest percentage reduction in energy use, adjusted for weather and the size of the building, will be recognized as the winner in November.

Today EPA announced the Top Contenders for each of twelve building categories, including Boston’s Colonnade Hotel, the First Unitarian Society of Minneapolis, Office Depot in Plano, Texas, and a parking garage at the University of Central Florida.

There’s a lot we can all do in our own workplaces, as well. Actor John Corbett, the 2011 ENERGY STAR National Building Competition spokesperson, offers some tips in a new video posted today on the ENERGY STAR site www.energystar.gov/battleofthebuildings.

ENERGY STAR was started by EPA in 1992 as a market-based partnership to reduce greenhouse gas emissions through energy efficiency. Today, the ENERGY STAR label can be found on commercial and industrial buildings as well as new homes and more than 60 different kinds of products that meet strict energy-efficiency specifications set by EPA. Last year alone, Americans, with the help of ENERGY STAR, saved about $18 billion on their energy bills while preventing greenhouse gas emissions equivalent to the annual emissions of click now buy levitra generic 33 million vehicles.

For a list of National Building Competition Top Contenders and http://africa-info.org/discount-drug-cialis complete midpoint results for all competitors: http://www.energystar.gov/BattleOfTheBuildings
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written by Olesin, August 01, 2011
Although the cost savings are significant the whole picture must be analyzed. Roofing is not inexpensive and paint will easily crack under extended sunlight. I've heard a lecture or two about how white roofs are worse, because the technology is not developed, or implemented correctly. I'm not saying its a bad idea, it just needs lifecycle analysis.
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written by William Dunn, August 11, 2011
Why not make a roof that has a switch to flip it from a white side, to a black side, and vise-versa? That way, in the winter, when the cheap cialis generic mastercard sun is needed to heat, you can flip it to the black side, and during the summer, you can flip it to the white side.
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written by Paul @ Green Budget Living, September 08, 2011
I've heard this said before, so why are urban planning regulations not amended to ensure that all tall flat roofed buildings have a white surface area on top?
Surely the way to get it picked up is to cialis next day lobby the planners?
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Insulation in Northern Homes Makes White Roofs Beneficial
written by Chuck, September 19, 2011
If we didn't have insulation in our northern homes, then having a dark roof in the winter would help with reducing heating required in the house. But most of us have insulation making a dark roof barely any benefit to our heating bill and a white roof a huge benefit to reducing climate change.

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