News tagged with oxide emissions

Could urine be a source of renewable energy?

A research team at Heriot-Watt University, UK, is investigating whether urine could be used to create energy via new, low-cost fuel cells.

Technology / Energy & Green Tech

created Aug 22, 2010 | popularity 4.7 / 5 (20) | comments 5 | with audio podcast

Greenhouse gases soar; no signs warming is slowed

(AP) -- Heat-trapping greenhouse gases in the atmosphere are building up so high, so fast, that some scientists now think the world can no longer limit global warming to the level world leaders have agreed upon as safe.

Space & Earth / Environment

created Nov 21, 2011 | popularity 4.4 / 5 (13) | comments 61

Engineers use rocket science to make wastewater treatment sustainable

Within the sludge of wastewater treatment plants is an invisible world teeming with microbes. Here, diverse species of bacteria convert solid and liquid wastes into gases, some of which contribute to global ...

Technology / Engineering

created Jul 26, 2010 | popularity 5 / 5 (9) | comments 2 | with audio podcast

New semiconductor nanowire laser technology could kill viruses, improve DVDs

A team led by a professor at the University of California, Riverside Bourns College of Engineering has made a discovery in semiconductor nanowire laser technology that could potentially do everything from kill viruses to ...

Nanotechnology / Nanophysics

created Jul 05, 2011 | popularity 5 / 5 (8) | comments 6 | with audio podcast

Climate tax on meat and milk results in less greenhouse gases

A climate tax corresponding to $80/ton CO2eq on meat and milk could reduce greenhouse gas emissions from European agriculture by around seven per cent. If the land made available is used for bioenergy production, the decrea ...

Space & Earth / Environment

created Jan 25, 2011 | popularity 3 / 5 (12) | comments 15

New study shows nitrous oxide now top ozone-depleting emission

Nitrous oxide has now become the largest ozone-depleting substance emitted through human activities, and is expected to remain the largest throughout the 21st century, NOAA scientists say in a new study.

Space & Earth / Earth Sciences

created Aug 27, 2009 | popularity 4.7 / 5 (7) | comments 3

Cars running on ethanol can pollute too: Brazil study

Cars running on sugarcane ethanol can produce as many harmful pollutants as those using ordinary petrol (gasoline), according a study published by Brazil's environment ministry.

Space & Earth / Environment

created Sep 17, 2009 | popularity 3.7 / 5 (9) | comments 8

German researchers demonstrate diesel truck engine with barely measurable emissions

Just three months after the Euro 5 Norm for exhaust emissions went into force for all new car models, researchers at the Technische Universitaet Muenchen (TUM, Germany) have demonstrated an engine that is ...

Technology / Engineering

created Dec 07, 2009 | popularity 3.7 / 5 (7) | comments 1

Earth is having a bad acid trip, study finds

Earth may be overdosing on acid - not the "turn on, tune in, drop out" kind, but the "kill fish, kill coral, kill crops" kind. And it's shaping up to be a very bad trip.

Space & Earth / Environment

created Oct 03, 2011 | popularity 5 / 5 (5) | comments 5

Scientists find new farming method to reduce greenhouse gases, increase farm yields

U.S. agricultural practices create 58 percent of nitrous oxide in the world, which is the third most prevalent greenhouse gas in the atmosphere. Scientists believe nitrous oxide contributes to global warming about 300 times ...

Space & Earth / Environment

created Jan 13, 2011 | popularity 4.2 / 5 (5) | comments 1

Soil microbes accelerate global warming

More carbon dioxide in the atmosphere causes soil to release the potent greenhouse gases methane and nitrous oxide, new research published in this week's edition of Nature reveals. "This feedback to our changing atmosphere means ...

Space & Earth / Environment

created Jul 13, 2011 | popularity 5 / 5 (4) | comments 4 | with audio podcast

Advanced engine-control system reduces biodiesel fuel consumption and emissions

Researchers from Purdue University and Cummins Inc. have developed an advanced "closed-loop control" approach for preventing diesel engines from emitting greater amounts of smog-causing nitrogen oxides when ...

Technology / Energy & Green Tech

created Jan 25, 2010 | popularity 3.8 / 5 (5) | comments 0 | with audio podcast

New proxy reveals how humans have disrupted the nitrogen cycle

More and more, scientists are getting a better grip on the nitrogen cycle. They are learning about sources of nitrogen and how this element changes as it loops from the nonliving, such as the atmosphere, soil ...

Space & Earth / Environment

created Jun 04, 2009 | popularity 2.6 / 5 (7) | comments 0

Farmers harness manure's gases to generate power

Where others see simply manure, Danny Kluthe smells money. Long before President Barack Obama promised the country that "we will harness the sun and the winds and the soil," Kluthe already had yoked the power of pig poop.

Technology / Energy & Green Tech

created Feb 16, 2009 | popularity 5 / 5 (3) | comments 2

Portable and precise gas sensor could monitor pollution and detect disease

In the air, it is a serious pollutant. In the body, it plays a role in heart rate, blood flow, nerve signals and immune function. Nitric oxide, a gas well known to scientists for its myriad functions, has ...

Technology / Engineering

created Sep 18, 2009 | popularity 5 / 5 (3) | comments 0