India launched its first spacecraft to Mars Tuesday at a price tag of $72 million. It takes less fuel to propel India's Mars orbiter 485 million miles to the Red Planet than you think.
A new generation of 'smart' thermostats leverage cheap sensors, data analytics, and other bells and whistles of the IT world to take the guesswork out of programming your thermostat. It's an emerging field that is expected to grow as users demand more from their everyday devices.
With the British shale story in its infancy, a new report downplays the risk of hydraulic fracturing, or fracking, leading to groundwater contamination. Will Britain follow in the US footsteps towards a shale gas boom?
Residents of four Colorado towns will vote on fracking bans Tuesday. Oil and gas production is growing in the western states, and what happens in Colorado is being closely watched in other shale-rich states.
The carbon bubble idea is an interesting hypothesis, Styles writes, but there are some flaws in the arguments Al Gore makes in its support. Carbon bubble or no, there's nothing wrong with investors wanting to track their carbon exposure, consider shadow carbon prices, or ensure they are properly diversified.
Daylight saving time ends this Sunday, meaning peak heating and lighting season really ramps up. Daylight saving time is itself a means to save energy, but there are plenty of other ways to save money and energy this fall and winter.
Two fires in damaged Tesla Motors Model S cars have raised some concerns over the safety of lithium ion batteries. But the concern should be more about the response from Tesla Motors, Finley writes, than the fires themselves.
Gas prices are continuing their downward slide, hitting the lowest average price since last December Friday. Gas prices are expected to continue to fall this year, and in many places, drivers are already paying less than $3 a gallon to fill up their gas tank.
As Japan moves forward with its energy future after the Fukushima disaster, it tries to balance stable electricity with public safety. Will Japan return to nuclear energy?
The US will begin publishing annual reports on how much the government spends on fossil fuel subsidies. It's part of the White House's broader push to be more transparent in mineral wealth extraction, but there's debate over exactly what subsidies are and how important they are to US energy.
Defense Department plans to buy 92,000 hybrid and electric vehicles over the next seven years to trim its fuel bill. They could be especially cost-effective in war zones.
Recent pipeline spills in North Dakota have drawn attention to the nation's extensive oil and gas pipeline network. Pipeline capacity is short of what's needed to keep pace with oil production in the United States, Graeber writes, and the regulatory agencies to monitor safety aren't up to snuff.
Happy Halloween: Trick or treat? Solar or oil? Even Halloween jack-o'-lanterns have joined the energy debate. When the Department of Energy promoted clean energy and efficiency as pumpkin-carving suggestions, the US oil and gas lobby served up its own Halloween ideas.
Keystone XL protesters used President Obama's Wednesday speech on health care to put the Canada-Texas pipeline back in the spotlight. Attention has shifted away from Keystone XL in recent months as fiscal debates and health care have overshadowed climate change in Washington.
The retail giant Walmart currently has 89 megawatts of solar power at 215 locations and in 2012, Walmart reached a goal of a 20 percent reduction in its greenhouse gas emissions.
Smart parking uses low-cost sensors, real-time data collection, and mobile-phone-enabled automated payment systems that help drivers quickly find a parking spot, Rucks and Guevara-Stone write. The system reduces car emissions in urban centers by reducing the need for people to needlessly circle city blocks searching for parking.
The US will end financial support for new coal projects overseas, except in narrowly defined circumstances, to address rising greenhouse-gas emissions. Can clean energy alone alleviate energy poverty?