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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...

China takes big step in reducing ozone depleting gases

China takes big step in reducing ozone depleting gases

China has taken a big step towards reducing its hydrochlorfluorocarbons by closi...

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 ...

Business

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

New Yorkers support renewables, opposes fracking – N.R.D.C. poll

New Yorkers support renewables, opposes fracking – N.R.D.C. poll

Sunday, 12 October 2014

A state-wide poll commissioned for the Natural Resources Defense Council reveals that New Yorkers oppose fracking and support clean, renewable energy....

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Living Green

Why saving chinchillas is important for saving the earth

Why saving chinchillas is important for saving the earth

Friday, 24 October 2014

Chinchillas make expensive pets and they are a long time commitment as well. They have a life span of around 15 to 20 years. Hence, people who adopt t...

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Renewables

World’s largest convention center solar array completed in Las Vegas

World’s largest convention center solar array completed in Las Vegas

Tuesday, 28 October 2014

The world’s largest rooftop solar array on a convention center has been completed at the Mandalay Bay Resort and Casino in Las Vegas. NRG Energy, Inc....

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Low-Carbon

What needs to be injected In the core DNA of urbanity

What needs to be injected In the core DNA of urbanity

Thursday, 23 October 2014

Urbanization has taken an unprecedented upward turn in recent years. In 2007, half of the world’s population – around 3.6 billion people – lived in ur...

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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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Two rare earth metals might not keep up with demand – M.I.T.

As low-carbon industries grow, some doubt that the available supply of rare earth metals – essential components in wind turbines and advanced batteries – can keep up with demand.

Researchers from the Massachusetts Institute of Technology's Materials Systems Laboratory looked at 10 of these metals and found that two, neodymium and dysprosium, are going to face serious supply challenges in the coming years.

According to the study, due to the projected rapid growth in demand for the high-performance permanent magnets needed by the wind turbine and EV markets, for example, demand for neodymium and dysprosium will rise at an unprecedented rate.

Demand for dysprosium is seen increasing 2,600 percent in the next 25 years, while that for neodymium is seen rising by as much as 700 percent for the same period.

While the researchers believe there are enough rare earth metals to meet demand, they believe it will be hard pressed to scale up the extraction and refining of these elements at a rate that matches the demand increase.

They recommend more research into developing new sources of the materials, substituting materials or improving the efficiency of their use. Ways to recycle the metals once the devices reach end of life could also be valuable.

Currently, China produces 98 percent of the world's rare earth metals with 50 percent of known rare earth metal reserves.

Rare earth metals are difficult to extract and bringing them up can result in environmental consequences.

The United States, which also has significant deposits of rare earths, has ceased mining almost altogether because of environmental regulations that have increased the cost of production.

China itself has caused international anxiety by limiting the quotas of rare earth metals they export, limitations they placed in 2010. – EcoSeed Staff



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