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Ozone layer on road to recovery – U.N.E.P., W.M.O.

Ozone layer on road to recovery – U.N.E.P., W.M.O.

The ozone layer is on the road to recovery, but unified action is still needed t...

Green vacation: Go on an eco-friendly safari

Green vacation: Go on an eco-friendly safari

The primary goal of modern-day eco-friendly African safaris is to lessen the ove...

Nepal, the Maldives, and Bhutan could lose around 2 percent G.D.P. due to climate change – A.D.B. report

Nepal, the Maldives, and Bhutan could lose around 2 percent G.D.P. due to climate change – A.D.B. report

Nepal, the Maldives, and Bhutan could be looking at economic losses of around 2 ...

South Asian countries face economic losses due to climate change – A.D.B. report

South Asian countries face economic losses due to climate change – A.D.B. report

Various countries in the South Asian region are looking at significant losses du...

World Bank aids Laos’ hydropower with $40 million in financing

World Bank aids Laos’ hydropower with $40 million in financing

The World Bank Group has inked two agreements for around $40 million in financin...

Vestas, EP Global Energy partner for donor-funded wind farm in Jordan

Vestas, EP Global Energy partner for donor-funded wind farm in Jordan

Wind turbine manufacturer Vestas and private energy asset developer EP Global En...

World Bank commits $5 billion for African renewable energy projects

World Bank commits $5 billion for African renewable energy projects

The World Bank Group has committed US$5 billion towards supporting energy projec...

Business

Technology

Politics

Climate Summit sees intiatives and commitments

Climate Summit sees intiatives and commitments

Thursday, 25 September 2014

Various bodies and entities on the Climate Summit in New York have announced their commitments and initiatives that are aimed at curbing the effects o...

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Living Green

Nineteen easy ways students can help save Mother Earth

Nineteen easy ways students can help save Mother Earth

Thursday, 18 September 2014

Students are young, creative, energetic and outspoken that is why they have the perfect qualities to help save mother earth. They can be great eco-war...

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Renewables

Glennmont begins operations at its Sleaford biomass plant

Glennmont begins operations at its Sleaford biomass plant

Wednesday, 24 September 2014

The 38 megawatt Sleaford biomass plant has commenced operations. Glennmont Partners, a leading investment manager dedicated to clean energy in Europe,...

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Low-Carbon

Easy modifications to make your car more efficient

Easy modifications to make your car more efficient

Monday, 22 September 2014

There are plenty of reasons why you might be interested in lowering your car’s emissions. In some states, you may be required to pass a mandatory smog...

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Opinion

Unsustainable urban life: What's next?

Unsustainable urban life: What's next?

Wednesday, 11 June 2014

Nutrition plays a critical role in everyone’s chance at a better future. Hunger, said Benjamin Franklin once, is the best pickle. Some say “pickle”...

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Desulfurized jet fuel has net cooling effect on atmosphere – study

A Yale University study found that the desulfurization of jet fuel could have a small, net cooling effect on the atmosphere.

While the Federal Aviation Administration has encouraged the use of desulfurized jet fuel to potentially improve air quality in airports and reduce risk of respiratory and cardiovascular illness, the Yale study points to another beneficial effect.

Sulfur-laden jet fuel, when burned, form sulfate particles that scatter solar radiation into space. It thus contributes to warming when sulfur is removed from jet fuel. However, the formation of nitrate from nitrogen oxides in jet exhaust offsets this by its own cooling effect.

"It's a win-win situation, because the sulfate can be taken out of the fuel to improve air quality around airports and, at the same time, it's not going to have a detrimental impact on global warming," said Nadine Unger, an assistant professor of climate science at the Yale School of Forestry and Environmental Studies.

The study used a model that assessed the impact of reducing the amount of sulfur in jet fuel from 600 milligrams per kilogram of fuel to 15 milligrams per kilogram, the level targeted by the United States Department of Transportation.

A paper on the study, authored by Ms. Unger and entitled "Global Climate Impact of Civil Aviation for Standard and Desulferized Jet Fuel" was published in Geophysical Research Letters in October. – Katrice R. Jalbuena



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