Energy resources

  • FrackingBetter solutions for recycle fracking water

    Scientists have performed a detailed analysis of water produced by hydraulic fracturing (aka fracking) of three gas reservoirs and suggested environmentally friendly remedies are needed to treat and reuse it. More advanced recycling rather than disposal of “produced” water pumped back out of wells could calm fears of accidental spillage and save millions of gallons of fresh water a year.

  • EnergyExisting power plants will emit 300 billion more tons of carbon dioxide during use

    Existing power plants around the world will pump out more than 300 billion tons of carbon dioxide over their expected lifetimes, significantly adding to atmospheric levels of the climate-warming gas, according to a new study. The study is the first to quantify how quickly these “committed” emissions are growing — by about 4 percent per year — as more fossil fuel-burning power plants are built. Assuming these stations will operate for forty years, the power plants constructed globally in 2012 alone will produce about nineteen billion tons of CO2 during their existence, the researchers project.

  • EnergyCutting carbon emissions more than pays for itself with savings on health care spending

    Just how large are the health benefits of cleaner air in comparison to the costs of reducing carbon emissions? MIT researchers looked at three policies achieving the same reductions in the United States, and found that the savings on health care spending and other costs related to illness can be big — in some cases, more than ten times the cost of policy implementation. The concluded that savings from healthier air can make up for some or all of the cost of carbon-reduction policies.

  • Nuclear powerTesting the shelf-life of nuclear reactors’ components

    The structural components of advanced reactors such as the sodium fast reactor and the traveling wave nuclear reactor must be able to withstand the extreme levels of radioactivity from the fission reaction itself at temperatures well above 400 Celsius. Unfortunately, standard tests of such components are expensive, require increasingly rare test reactors and test periods that are impractical. Researchers have devised a quick way to test the structural materials used to build nuclear reactors by using high-energy beams of charged particles (ions).

  • EnergyThe power of salt

    By Jennifer Chu

    Where the river meets the sea, there is the potential to harness a significant amount of renewable energy, mechanical engineers say. The researchers evaluated an emerging method of power generation called pressure retarded osmosis (PRO), in which two streams of different salinity are mixed to produce energy. In principle, a PRO system would take in river water and seawater on either side of a semi-permeable membrane. Through osmosis, water from the less-salty stream would cross the membrane to a pre-pressurized saltier side, creating a flow that can be sent through a turbine to recover power.

  • FrackingIngredients in “fracking” fluids raise concerns

    As the oil and gas drilling technique called hydraulic fracturing (or “fracking”) proliferates, a new study on the contents of the fluids involved in the process raises concerns about several ingredients. The researchers say that out of nearly 200 commonly used compounds, there is very little known about the potential health risks of about one-third, and eight are toxic to mammals.

  • EnergyLandfills’ stinky gases could transform into clean energy

    A new technique which transforms stinky, air-polluting landfill gas could produce the sweet smell of success as it leads to development of a fuel cell generating clean electricity for homes, offices and hospitals, researchers say. The advance would convert methane gas into hydrogen, an efficient, clean form of energy.

  • HazmatU.S. to impose stricter safety rules on crude oil rail shipment

    The U.S. Department of Transportation(DOT) recently announced proposed rulesbetter to secure train cars and pipelines from oil spills that may lead to fire or accidents in communities across the country. The spills are byproducts of the increase in U.S. oil production and shipments coming from Canada or the Bakken oil fields of North Dakota. The proposed DOT rules would force railroads to upgrade railroad cars used for transporting crude oil, employ better braking systems, and enforce tighter speed controls.

  • EnergyNew rules proposed for crude oil shipments

    U.S Department of Transportation (DOT) secretary Anthony Foxx has announced that the department is proposing new rules for shipments of high-hazard crude oil by trains, as well as moving to phase out the use of older tank cars that many see as unsafe. The order follows a deadly year for oil train accidents, including a July 2013 derailment in Lac Megantic, Quebec resulting in the deaths of forty-seven people and a 30 April derailment in Lynchburg, Virginia.

  • EarthquakesWastewater injection induces Oklahoma quakes: study

    The dramatic increase in earthquakes in central Oklahoma since 2009 is likely attributable to subsurface wastewater injection at just a handful of disposal wells, finds a new study. The researchers say Oklahoma earthquakes constitute nearly half of all central and eastern U.S. seismicity from 2008 to 2013, many occurring in areas of high-rate water disposal.

  • EnergyThe price tag of the 2° climate target

    Addressing climate change will require substantial new investment in low-carbon energy and energy efficiency — but no more than what is currently spent on today’s fossil-dominated energy system. To limit climate change to 2° Celsius, low-carbon energy options will need additional investments of about $800 billion a year globally from now to mid-century, according to a new study, but much of that capital, however, could come from shifting subsidies and investments away from fossil fuels and associated technologies. Worldwide, fossil subsidies currently amount to around $500 billion per year.

  • EnergyNet energy analysis should regarded as a standard policy tool: scientists

    It takes energy to make energy, whether it is renewable or a fossil fuel. Net energy analysis gauges the sustainability of energy technologies over time. Net energy analysis provides a quantitative way to compare the amount of energy a technology produces over its lifetime with the energy required to build and maintain it. The technique can complement conventional energy planning, which often focuses on minimizing the financial cost of energy production, Stanford researchers say.

  • TransportationHeavier oil train traffic in western U.S. causes safety worries

    In May, following extensive debate regarding security concerns, U.S. Transportation Secretary Anthony Foxx ordered railroads to share oil train shipment information with states, in order better to inform first responders should an accident occur. In the first quarter of 2014 alone, there were 110,000 carloads of oil. Each train can carry three million gallons of oil.

  • HazmatDetails of oil shipments by rail are not security sensitive and should be released: DOT

    The boom in U.S. oil shipments by rail is largely due to the growing production of shale oil from the Bakken fields in North Dakota and Montana, but also due to the slow construction of new oil pipelines. U.S. freight railroads are estimated to have carried 434,000 carloads of crude oil in 2013, compared to 9,500 carloads in 2008. In 2014, 650,000 carloads of crude oil are expected to be carried. So far U.S. crude oil shipments by rail have reached a record 110,000 carloads in the first quarter of 2014. Transportation Secretary Anthony Foxx issued an order in May for railroads to provide states with details on routing and oil-train volumes. Last week, U.S. Department of Transportationofficials affirmed that details about volatile oil train shipments are not sensitive security information, thereby allowing states to release such information to the public.

  • IraqISIS insurgents take over Iraq’s largest refinery, continue advance toward Baghdad

    Earlier this morning (Wednesday) ISIS Islamic militants took over Iraq’s biggest oil refinery, located near the town of Baiji, 130 miles north of Baghdad. The fall of the refinery is a major blow to the already-reeling government of Nouri al-Maliki. The refinery provides about 40 percent of Iraq’s refined oil needs, and if the supplies dry up, the Iraqi economy would be paralyzed within a few days, and Iraqi citizens would be without power or gas for their cars. As was the case since the ISIS campaign began late last week, the Iraqi military and security forces put up only a token resistance, with most of their units melting away and leaving their arms and equipment behind without even engaging the militants. Iraq is the second largest oil producer in OPEC.