Sources of air pollution in S.F. (The San Francisco Examiner) I was interested to read the letter from Barbara Hale of the San Francisco Public Utilities Commission setting forth the case for The City’s electric peaker plant to ensure that the old Mirant power plant is closed, in response to Joshua Arce’s proposal to leave a portion of the Mirant plant operating (letters, Nov. 29). [News Source]

Debate over Northshore Mining air quality plays out in court (Minnesota Public Radio) Northshore Mining company and its critics argued in a St. Paul courtroom Thursday over air quality. The company wants a judge to drop part of a 30-year-old ruling on how much air pollution it can put out. The state and environmental groups say the standard shouldn't be dropped. [News Source]

Woodstove changeout heats up (Tahoe Daily Tribune) Placer County may expand its wood stove replacement program county-wide in an effort to curb air pollution. [News Source]

Ceco unveils $13.5M in orders (The Cincinnati Enquirer) Ceco Environmental Corp., supplier of industrial air pollution equipment with operations in Oakley and West Chester Township, this morning announced 10 new orders valued at $13.5 million. [News Source]

State eyes air pollution regs for drillers (The Aspen Times) GLENWOOD SPRINGS The state will be looking at tougher air pollution limits for oil and gas development, and an advocacy group says changes can't come fast enough for places such as Garfield County. [News Source]

CECO Environmental Receives 10 New Orders Totaling Approximately $13.5 Million (FinanzNachrichten) NEW YORK, Nov. 29 /PRNewswire-FirstCall/ -- CECO Environmental Corp. ( Nachrichten ), a leading provider of air pollution control and industrial ventilation systems, announced today that it has secured 10 new orders totaling approximately $13.5 million. [News Source]

CECO Environmental Receives 10 New Orders Totaling Approximately $13.5 Million (PR Newswire via Yahoo! Finance) CECO Environmental Corp. , a leading provider of air pollution control and industrial ventilation systems, announced today that it has secured 10 new orders totaling approximately $13.5 million. [News Source]

Bird groups say 56 species are threatened in N.C. (The News & Observer) Each species at risk has its own set of hazards, including sprawl, habitat loss, air pollution and global warming. [News Source]

Lawmakers worry tolls will increase I-81 traffic (The Sentinel) Cumberland County state lawmakers say they are concerned that a plan to toll Interstate 80 might divert more tractor-trailers to Interstate 81 and exacerbate the highway’s already troublesome traffic and air pollution problems. [News Source]