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SPI Solar to acquire 360 MW worth of solar power projects in China

SPI Solar to acquire 360 MW worth of solar power projects in China

Solar Power, Inc. is set to become one of the largest solar developers in China....

Toyota hybrid exceeds 7 million mark in global sales

Toyota hybrid exceeds 7 million mark in global sales

The cumulative global sales of Toyota Motor Corporation’s hybrid vehicle have ex...

Suzlon eyes 2,000 MW of wind energy projects in India over next five years

Suzlon eyes 2,000 MW of wind energy projects in India over next five years

India-based wind turbine maker Suzlon has expressed its intent to build 2,000 me...

Solar power could be leading source of electricity by 2050

Solar power could be leading source of electricity by 2050

Solar power could overtake all other sources of electricity by 2050, according t...

U.N. chief welcomes announcements made in Climate Summit

U.N. chief welcomes announcements made in Climate Summit

United Nations Secretary-General Ban Ki-moon welcomed bold new actions to addres...

Climate Summit sees intiatives and commitments

Climate Summit sees intiatives and commitments

Various bodies and entities on the Climate Summit in New York have announced the...

Climate Rally reaches 310,000 participants

Climate Rally reaches 310,000 participants

The number of people who joined the People’s Climate March this September 21 rea...

Business

Richard Flint, Yorkshire Water CEO, opens self-powered sewage works

Richard Flint, Yorkshire Water CEO, opens self-powered sewage works

Thursday, 13 November 2014

Consuming two years development time and a whopping £34 million investment, Yorkshire’s first self-powered sewage works site has been unveiled in Brad...

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Technology

New oxygen-removing catalyst developed for better biofuel production

New oxygen-removing catalyst developed for better biofuel production

Thursday, 23 October 2014

Researchers from Washington State University have developed a new catalyst that can remove oxygen from plant-based materials for a more efficient biof...

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Politics

U.S., China announce significant emissions reduction cuts

U.S., China announce significant emissions reduction cuts

Thursday, 13 November 2014

The Governments of the United States and China have announced that they will be making huge emissions reduction cuts in the future. The two largest ec...

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Living Green

Water, waste and power: What you need to get off the grid

Water, waste and power: What you need to get off the grid

Friday, 07 November 2014

Most people wouldn't ever voluntarily go "off the grid" for more than a few days at a time. To them, the idea would only make sense if it was a weeken...

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Renewables

EDF EN Canada begins construction on 74-MW wind power project in Quebec

EDF EN Canada begins construction on 74-MW wind power project in Quebec

Thursday, 13 November 2014

EDF EN Canada is set to begin construction of the 74 megawatt Mont-Rothery wind project in Quebec. Following the government of Quebec’s issuance of a ...

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Low-Carbon

Best Eco Cars of 2014

Best Eco Cars of 2014

Wednesday, 12 November 2014

Eco-friendly cars, also referred to as green cars, are vehicles that have a lesser environmental impact than those that use fossil fuels like diesel o...

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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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