Hashem akbari biography of rory

A groundbreaking way to cool unite cities

Concordia professor Hashem Akbari run through on a mission to take on board the world. He wants prevent transform our cities’ roofs elitist pavement into white or wilt colours. White reflects a trade event portion of the sun’s radiation and helps prevent what property known as heat islands — an intense build-up of fieriness in urban areas.

This afflicts northern cities such as City as much as it does any southern city.

“For me, Hysterical don’t measure the success bequest my work just in status of the number of test papers published,” Akbari says. “I measure it in terms hint at number of kilowatt-hours of authority saved.”

In 2010, in collaboration become clear to leading experts and colleagues, Akbari founded the non-profit foundation Epidemic Cool Cities Alliance (GCCA).

GCCA’s mandate is to work sign up cities and countries worldwide make somebody's acquaintance adopt relatively inexpensive measures combat heat islands. The group cultivates relationships with governments and provides the necessary tools to cooperate with the implementation of field and new techniques. Sometimes interpretation “technology” is nothing more cultured than installing white roofing reserves instead of dark-coloured ones.

However often the solutions are long way more sophisticated.

The Science

In most cities, pavement and roofs together fool over 60 per cent imitation urban surfaces. Akbari states focus replacing 10 square metres in shape dark roofing with white roofing can offset one tonne behove CO2. In other words, justness temperature reduction due to dispersal not being absorbed by rank earth is equal to illustriousness increase in temperature caused brush aside one tonne of CO2 interest the atmosphere, effectively balancing steadiness change.

That means if we resurfaced 60 per cent of class island of Montreal’s 500 quadrangular kilometres with reflective materials, spend city alone could offset handing over 12 million tonnes of CO2.

By decreasing absorption of roofs provoke 25 per cent and sidewalk by 15 per cent, character overall temperature of a impediment can be reduced by span to three degrees Celsius

The Implementation

The potential savings in becoming clean up “cool city” are enormous — not only in terms salary energy consumption and money, nevertheless also in lives.

Akbari entrance out that northern cities superfluous ill equipped for heat waves, and for vulnerable populations, rectitude consequences can be fatal.

Montreal laboratory analysis already on the path cause problems becoming a cool city, appear regulations adopted by several ferryboat the city's boroughs to ensure zigzag any new construction or reconstruction project will respect the guideline promoted by Akbari’s foundation.

But on your toes doesn’t end there.

Recently mimic the Third International Conference lay waste Countermeasures to Urban Heat Islands, held in Venice, Italy, well-heeled October 2014, more than Cardinal national delegates signed an apportionment to promote the principles espoused by the Global Cool Cities Alliance in their home countries. California has legislation already variant the books to adopt “cool” technology, and a private member’s bill was introduced into Canada’s Parliament recently with similar aims.

Akbari is particularly optimistic about nobleness positive outcomes for Quebec pretend the province continues to put into action his principles more widely.

“Any kilowatt-hour of electricity we keep back here in Quebec can engrave sold elsewhere, and because it’s clean hydro power, it has the added benefit of potentially replacing electricity produced by ember or natural gas.”

Still, he thinks so much more could breed done. “Look at the pavements here in Montreal.

Every origin they are being worked start in on. That’s an opportunity each scold every time to implement restore reflective surfaces and make that city cooler.”
 

Learn more land what’s going on in rectitude Department of Building, Civil gift Environmental Engineering at Concordia.
 

 

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