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The latest news about environmental and green
technologies – renewables, energy savings, fuel cells

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Greening our cities

Solutions to halving energy consumption, costs and greenhouse emissions in cities may be on the horizon, as long as partners find suitable ways to cooperate.

Posted: Jun 11th, 2014

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Snowballs to soot: The clumping density of many things seems to be a standard

Particles of soot floating through the air and comets hurtling through space have at least one thing in common: 0.36. That, reports a research group, is the measure of how dense they will get under normal conditions, and it?s a value that seems to be constant for similar aggregates across an impressively wide size range from nanometers to tens of meters.

Posted: Jun 11th, 2014

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Sopcawind, a multidisciplinary tool for designing wind farms (w/video)

The SOPCAWIND tool is a piece of software that facilitates the design of wind farms, bearing in mind not only the aspects of energy productivity but also the possible impact the wind farm may have on the environment, radars or other telecommunications systems in the vicinity. It also assesses acoustic noise, the effect of shadow on nearby housing, and applies criteria for heritage protection or clearance from transport networks and certain facilities.

Posted: Jun 10th, 2014

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How much fertilizer is too much for the climate?

Helping farmers around the globe apply more-precise amounts of nitrogen-based fertilizer can help combat climate change. In a new study, researchers provide an improved prediction of nitrogen fertilizer's contribution to greenhouse gas emissions from agricultural fields.

Posted: Jun 9th, 2014

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Cleaning the air with roof tiles

Researchers created a roof tile coating that when applied to an average-sized residential roof breaks down the same amount of smog-causing nitrogen oxides per year as a car driven 11,000 miles.

Posted: Jun 4th, 2014

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Clean power from waste heat

Siemens has developed a technology to use waste heat, which previously had gone unused, to generate electricity. The solution employs silicone oils, which have a lower enthalpy of vaporization than water, and is needed because waste heat produced in industrial plants or power stations often does not have enough energy to drive a turbine with steam.

Posted: Jun 4th, 2014

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