Many streams are at risk from pharmaceutical pollution
Traces of pain-relieving substances, diabetes drugs and allergy medicines are widespread in small streams across the Southeast, especially in urban zones like Raleigh, North Carolina, the U.S. Geological Survey found in a new study.
Broad coalition of conservation groups oppose measure that could speed approval of natural gas export terminals
Pro-fossil fuel legislators in Congress hope they can help their campaign donors by putting the cart before the fracking horse. An amended version of the Senate’s Energy Policy Modernization Act of 2016 (S. 2012) includes provisions that would speed up the Federal Energy Regulatory Commission’s approval of liquefied natural gas export terminals.
According to critics of the measure, that artificially increases the demand for U.S. natural gas and hits communities with additional health and climate risks. More than 370 organizations are urging the Senate to reject provisions in the bill that would encourage oil and gas fracking.
Local, regional controls help improve global picture
Global mercury emissions dropped by nearly a third between 1990 and 2010, according to a new study that tried to identify patterns and trends in mercury pollution.
Rapid economic development in Asia means higher mercury emissions, but reductions in North America were enough to offset the increases, according to scientists from China, Germany, Canada and the U.S.
Mercury is a metallic element that poses environmental health risks to both wildlife and humans when converted to methylmercury in ecosystems. It can be converted into gaseous emissions during various industrial activities, as well as natural processes like volcanic eruptions. Continue reading “Study tracks big drop in global mercury emissions”→
Environmentalists say new rule is to weak; industry asks Congress to step into the fray
The EPA’s new smog-fighting ozone standard is likely headed down the same path as the agency’s other recent initiatives to improve the environment.
Like the recently updated wetlands rule and the Clean Power Plan, the new ozone limit was immediately criticized from all sides. Environmental advocates said the agency ignored its own experts when it set the new limit at 70 parts per billion. Industry claims the new rule will cut profits and cost jobs. Continue reading “EPA sets new ozone standard but faces challenges”→
Oil refineries will have to do a better job of limiting pollutants that cause cancer and respiratory ailments under updated EPA regulations that require fenceline monitoring and more transparent data on emissions.
The regulations cover controls for flares, pressure relief devices, storage tanks, and delayed coker operations. The EPA expects that the rule will result in a reduction of 5,200 tons per year of toxic air pollutants, and 50,000 tons per year of volatile organic compounds, chemical precursors to ozone.
Changing flight intervals could save $10 million per year
By Bob Berwyn
Tweaking flight paths across the Atlantic could yield huge savings in fuel costs and help cut airline greenhouse gas emissions.
“If the lateral separation between the aircraft can be reduced, they can be spaced closer and remain more in line with their optimum flight paths. Overall, this would produce fuel economy as most aircraft save fuel at higher cruise altitudes,” said Antonio Trani, director of Virginia Tech’s Air Transportation Systems Laboratory and a professor of civil and environmental engineering.
Researchers in the UK have helped show how volcanoes can affect air quality by quantifying emissions from last year’s eruption of Iceland’s Bárðarbunga volcano.
“The eruption discharged lava at a rate of more than 200 cubic metres per second, which is equivalent to filling five Olympic-sized swimming pools in a minute,” said Dr Anja Schmidt from the School of Earth and Environment at the University of Leeds, who led the study. Continue reading “Environment: Study quantifies volcano pollution”→