Sensor mimics bats to detect dangerous structural cracks

An ultrasound sensor for detecting dangerous cracks in structures such as aircraft engines, oil and gas pipelines and nuclear plants has been developed by researchers at the University of Strathclyde – with inspiration ...

Greenhouse gas-caused warming felt in just months

The heat generated by burning a fossil fuel is surpassed within a few months by the warming caused by the release of its carbon dioxide into the atmosphere, according to new work from Carnegie's Xiaochun Zhang and Ken Caldeira ...

Flexible methane production from electricity and bio-mass

Interlinkage of the power and gas grids is planned to make electricity supply sustainable and robust in the future. Fluctuating amounts of wind and solar power, for instance, might be stored in the form of the chemical energy ...

Study examines effectiveness of regulation in electricity markets

A study in the latest issue of the American Economic Review used recent state regulatory changes in electricity markets as a laboratory to evaluate which factors can contribute to a regulation causing a bigger mess than the ...

Is natural gas a 'bridge' to a hotter future?

Natural gas power plants produce substantial amounts of gases that lead to global warming. Replacing old coal-fired power plants with new natural gas plants could cause climate damage to increase over the next decades, unless ...

Are electric cars greener? Depends on where you live

Long thought a thing of the future, electric cars are becoming mainstream. Sales in the United States of plug-in, electric vehicles nearly doubled last year. Credible forecasts see the number rising within a decade to half ...

Exporting US coal to Asia could drop emissions 21 percent

Under the right scenario, exporting U.S. coal to power plants in South Korea could lead to a 21 percent drop in greenhouse gas emissions compared to burning the fossil fuel at plants in the United States, according to a new ...

page 8 from 13