Energy

New study shows climate models over-predict climate change related precipitation increase
December 10, 2015 02:20 PM - Lawrence Livermore National Laboratory

 

Lawrence Livermore researchers and collaborators have found that most climate models overestimate the increase in global precipitation due to climate change.

Specifically, the team looked at 25 models and found they underestimate the increase in absorption of sunlight by water vapor as the atmosphere becomes moister, and therefore overestimate increases in global precipitation.

The team found global precipitation increase per degree of global warming at the end of the 21st century may be about 40 percent smaller than what the models, on average, currently predict.

 

What is the future of coal power production?
December 10, 2015 08:14 AM - Fred Pearce, Environment360

Is Paris the beginning of the end for coal? Coal burning is declining fast in both of the world's two largest carbon dioxide emitters, China and the the United States, with resulting declines in the emissions of both countries. The fuel looks incompatible with a world that warms by no more than two degrees Celsius, bringing calls for its rapid phaseout as the world is "decarbonized." 

But, with or without a deal here in Paris later this week, will the calls be heeded? Has the demise of King Coal been greatly exaggerated?  

In the U.S., "coal has gone from boom to bust," says Michael Brune, executive director of the Sierra Club. The black stuff's share of electricity generation has sunk from 53 percent to 35 percent in just five years.
 

New battery can store 10 times the energy of the next best device
November 30, 2015 07:17 AM - Robert F. Service, Science/AAAS

Industrial-scale batteries, known as flow batteries, could one day usher in widespread use of renewable energy—but only if the devices can store large amounts of energy cheaply and feed it to the grid when the sun isn’t shining and the winds are calm. That’s something conventional flow batteries can’t do. Now, researchers report that they’ve created a novel type of flow battery that uses lithium ion technology—the sort used to power laptops—to store about 10 times as much energy as the most common flow batteries on the market. With a few improvements, the new batteries could make a major impact on the way we store and deliver energy.

Could Lithium-air batteries make oil obsolete?
November 24, 2015 06:47 AM - Editor, The Ecologist

Sooner than it takes to build a nuclear power station, lithium-air batteries could be helping wind and solar to make coal, oil and nuclear obsolete, say Cambridge scientists. Five times lighter and five times cheaper than current lithium batteries, Li-air would open the way to our 100% renewable future.

US Forest Service proposes coal mining expansion in Colorado
November 20, 2015 10:08 AM - Center for Biological Diversity

National and local conservation groups today condemned a decision by the U.S. Forest Service to continue pressing to open national forest roadless areas in Colorado to coal mining.

In a notice filed today, the Forest Service announced it would move forward by issuing a draft environmental impact statement on the proposal to pave the way for mining. The proposal would reopen a loophole in the “roadless rule” for national forests in Colorado to enable Arch Coal — the nation’s second largest coal company — to scrape roads and well pads on nearly 20,000 acres of otherwise-protected, publicly owned national forest and wildlife habitat in Colorado’s North Fork Valley.

EVs vs. Gasoline-Powered Cars - Which has the cleaner lifecycle?
November 19, 2015 07:15 AM - Leon Kaye, Triple Pundit

It’s the trick question that has left many of us stumped: from the earliest stages of manufacture to the years driving on the road until they are sent to the junkyard, are conventional automobiles or electric cars cleaner for the environment? While acknowledging that electric vehicles (EVs) emit no emissions when running on our streets and highways, many have assumed that those pesky rare earth metals in their massive batteries and the emissions associated with producing the power canceled out any environmental benefits that their drivers enjoyed. According to the Union of Concerned Scientists (UCS), a two-year study has provided the answer.

World's First Solar Road Exceeds Expectations
November 16, 2015 07:21 AM - Matthew Young, Triple Pundit

The first aptly-titled SolaRoad made its debut last November in the Netherlands, not far from Amsterdam. The road itself is a unique foray in pollution-free solar energy. Nearly one year later, the SolaRoad’s designers say the high-tech bike path is performing better than they expected.

In the first six months since it was installed, the SolaRoad has generated over 3,000 kilowatt-hours — or roughly the equivalent required for a single-person household for one calendar year.

Obama Rejects Keystone XL Pipeline
November 9, 2015 06:41 AM - Center for Biological Diversity

In a crucial victory for the climate, wildlife and the millions who spoke against it, President Obama rejected the Keystone XL project today, saying that building the tar sands oil pipeline is not in the national interest.

Over the past four years, scientists, environmentalists, tribes, farmers, celebrities and business people joined forces to fight the pipeline, with more than 2 million comments submitted to the U.S. State Department, tens of thousands participating in rallies against Keystone in all 50 states, and thousands of citizens arrested in peaceful civil disobedience.

“This is a historic moment, not just for what it means about avoiding the impacts of this disastrous pipeline but for all of those who spoke out for a healthy, livable climate and energy policies that put people and wildlife ahead of pollution and profits,” said Valerie Love with the Center for Biological Diversity. “President Obama did the right thing, but he didn’t do it alone: Millions of Americans made their voices heard on this issue, and will continue pressing Obama and other political leaders to do what’s necessary to avoid climate catastrophe.”

Volkswagen's "premium" brands cheated too
November 3, 2015 07:34 AM - Eurctiv

The Volkswagen emissions-cheating scandal widened Monday (2 November) as US regulators said the German automaker also included illegal "defeat devices" on its larger 3.0 liter diesel engines over the past three years.

But the Environmental Protection Agency said it had discovered in its investigation that various six-cylinder 3.0 liter diesel VW Touareg, Porsche Cayenne and Audis from the 2014-2016 model years and distributed in the United States had also been rigged with the software.

Should government buildings offer free Electric Vehicle charging?
November 2, 2015 06:49 AM - MARK BENSON , Electric Forum

As governments around the world continue to push the concept of electric vehicles there are growing calls for all government buildings to offer free EV charging. This would certainly kickstart the concerns regarding EV charging networks which seems to be at the forefront of the minds of many sceptics. So, how would this concept work and is it really viable?

Helping the electric vehicle industry

While many governments around the world are doing a significant amount of work behind the scenes to help the electric vehicle market, could they do more? It would be wrong to suggest that all government buildings do not offer any form of electric vehicle charging but for many people these services are few and far between. When you consider that countries such as the UK employ more than 50% of the workforce in public services there must be an enormous scope to assist the industry?

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