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Sat07262014

The truth about the forthcoming endangered cities

The truth about the forthcoming endangered cities

Gone are the days when the term ‘endangered’ was being cascaded to animals or di...

Elemooni: Eco-friendliness for kids

Elemooni: Eco-friendliness for kids

A new group of nano explorers could change the way children learn about positive...

R.E.S. Americas orders 166 MW-worth of wind turbines from Vestas

R.E.S. Americas orders 166 MW-worth of wind turbines from Vestas

Wind turbine manufacturer Vestas has received an order from Renewable Energy Sys...

N.R.D.C. fights back, counters discrediting advertisements through TV ads

N.R.D.C. fights back, counters discrediting advertisements through TV ads

New York-based environmental advocacy group Natural Resources Defense Council ha...

North Caucasus hydropower to increase with three new projects from RusHydro

North Caucasus hydropower to increase with three new projects from RusHydro

Three small hydropower plants developed by RusHydroare set to begin construction...

Discrediting advertisements on carbon pollution standards outrages organizations

Discrediting advertisements on carbon pollution standards outrages organizations

The Natural Resources Defense Council, and more than two dozen organizations, is...

Supercritical steam for super productive solar thermal plants

Supercritical steam for super productive solar thermal plants

By using supercritical steam, solar thermal power plants could produce enough en...

Business

Technology

Minimizing the glare of L.E.D. lights for safer night time driving

Minimizing the glare of L.E.D. lights for safer night time driving

Wednesday, 23 July 2014

While the use of light emitting diode technology or L.E.D.s are rising – mostly due to their energy-efficiency – there is some concern that the harsh ...

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Politics

Living Green

Painless solutions to achieving sustainability democracy

Painless solutions to achieving sustainability democracy

Wednesday, 23 July 2014

This famous sustainability quote of Aldous Huxley, can tell us a lesson: to stop destroying our environment because it takes a lot of hard work to rep...

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Renewables

Low-Carbon

Tips on cutting costs in the construction industry

Tips on cutting costs in the construction industry

Wednesday, 23 July 2014

The term ‘cost-cutting’ is usually looked upon with overriding feelings of doubt, uncertainty, anxiety, and generally as a period of impending hardshi...

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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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