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.
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.
Environment
Sep 17, 2009
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A patent was recently issued to Kansas State University for a system that controls the airflow to pistons in reciprocating internal combustion engines—engines powered by pistons.
Engineering
Feb 13, 2014
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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 warming.
Engineering
Jul 26, 2010
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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 running on biodiesel ...
Energy & Green Tech
Jan 25, 2010
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Air pollution dramatically reduces pollination because it degrades the scent of flowers, affecting bees' ability to find them, a study has found.
Plants & Animals
Sep 4, 2023
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Northwestern University researchers have combined climate modeling with public health data to evaluate the impact of electric vehicles (EVs) on U.S. lives and the economy.
Environment
Aug 17, 2020
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Most of us know nitrous oxide as "laughing gas," used for its anaesthetic effects. But nitrous oxide (N2O) is actually the third most important long-lived greenhouse gas, after carbon dioxide (CO2) and methane. Nitrous oxide ...
Earth Sciences
Nov 18, 2019
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Environmental groups Seas At Risk and Transport and Environment have announced the results of a study they commissioned to Reynolds Environmental Sustainability Consultants (RESC). A paper written by the team at RESC has ...
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 or water, to ...
Environment
Jun 4, 2009
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Oxford University researchers have developed a sensor made of sapphire fiber that can tolerate extreme temperatures, with the potential to enable significant improvements in efficiency and emission reduction in aerospace ...
Optics & Photonics
Apr 21, 2022
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