In its Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards report—released Friday—the U.S. Environmental Protection Agency (EPA) suggests revising the health-based national ambient air quality standard for ozone.
“Staff concludes that it is appropriate in this review to consider a revised primary [ozone] standard level within the range of 70 ppb [parts per billion] to 60 ppb,” the report said (subscription). “A standard set within this range would result in important improvements in public protection, compared to the current standard, and could reasonably be judged to provide an appropriate degree of public health protection, including for at-risk populations and life stages.”
The report is part of the normal EPA process to consider changing air quality standards. It recommends tightening current smog rules—now at 75 parts per billion—somewhere between 7 and 20 percent, echoing findings of the EPA’s science advisory committee in June. A final decision lies with EPA Administrator Gina McCarthy, who has a Dec. 1 deadline to issue a proposal on whether to retain or revise the existing standard.
Earlier in the week, McCarthy announced plans to issue a methane strategy emphasizing efficiency and reducing the need to flare gas—a strategy that could force oil and gas producers to cut emissions.
“We’re going to be putting out a strategy this fall and we hope everybody will pay attention to that effort,” McCarthy said at the Barclays Capital energy forum on Tuesday. “It will be addressing the challenges as well as the opportunities.”
Whether or not actual regulations for the industry will be issued is still being decided. McCarthy noted that the agency is “looking at what are the most cost-effective regulatory and-or voluntary efforts that can take a chunk out of methane in the system.”
This effort follows on the heels of an announcement by the White House that directed the EPA to develop an inter-agency strategy to combat methane emissions from oil and natural gas systems. If issued, rules to cut methane emissions would take effect in 2016.
China Eyes Carbon Market
Reuters reports that China will launch the world’s largest carbon market in 2016, although some provinces would be allowed to join later if they lacked the technical infrastructure needed to participate at the outset. “We will send over the national market regulations to the State Council for approval by the end of the year,” Sun Cuihua, a senior climate official with the National Development and Reform Commission (NDRC), told a conference in Bejing.
Confirming the earlier statement by Cuihua, Wang Shu, an official with the climate division of the NDRC said “We’ve brought forward this plan because it’s been prioritized in the central government’s economic reforms. The central government is pushing reforms, so everything is speeding up.” According to Reuters, as in other carbon markets, power plants and manufacturers would face a cap on the carbon dioxide they discharge. If an emitter needs to exceed its cap, it will have to purchase additional permits from the market to account for such emissions.
Court Finds BP Grossly Negligent in 2010 Gulf Spill
A U.S. District judge on Thursday ruled that BP was “grossly negligent” in the 2010 Deepwater Horizon explosion that killed 11 men and allowed millions of barrels of oil to flow out of the Macondo oil well into the Gulf of Mexico.
“The court concludes that the discharge of oil was the result of gross negligence or willful misconduct,” by BP, the ruling from U.S. District Court Judge Carl Barbier said. He found that BP was at fault for 67 percent of the spill. Two other companies involved—Transocean and Halliburton—were responsible for 30 and 3 percent, respectively.
“The law is clear that proving gross negligence is a very high bar that was not met in this case,” BP said in a statement. “BP believes that an impartial view of the record does not support the erroneous conclusion reached by the District Court. The court has not yet ruled on the number of barrels spilled and no penalty has been determined. The District Court will hold additional proceedings, which are currently scheduled to begin in January 2015, to consider the application of statutory penalty factors in assessing a per-barrel Clean Water Act penalty.”
Judge Barbier’s ruling could result in as much as $18 billion in fines under the Clean Water Act, according to The Hill.
Bacteria Used to Make Alternative Fuel
A study in the journal Nature Communications suggests that Escherichia coli, or E. coli bacteria, which is widely found in the human intestine, can be used to create propane gas that can power vehicles, central heating systems and camp stoves.
“Although this research is at a very early stage, our proof of concept study provides a method for renewable production of a fuel that previously was only accessible from fossil reserves,” said Patrik Jones, a study co-author. “Although we have only produced tiny amounts so far, the fuel we have produced is ready to be used in an engine straight away. This opens up possibilities for future sustainable production of renewable fuels that at first could complement, and thereafter replace fossil fuels like diesel, petrol, natural gas and jet fuel.”
Commercial production is still five to 10 years away—the level of propane produced by the team is 1,000 times less than that needed to make a commercial product. The process, which needs further refinement, uses E. coli to interrupt a biological process to create engine-ready propane rather than cell membranes.
“At the moment, we don’t have a full grasp of exactly how the fuel molecules are made, so we are now trying to find out exactly how this process unfolds,” Jones said.
The Climate Post offers a rundown of the week in climate and energy news. It is produced each Thursday by Duke University’s Nicholas Institute for Environmental Policy Solutions.