On March 29, 2007, EPA finalized the Clean Air Fine Particle Implementation Rule.

A report on the environmental pros and cons of wind power is scheduled to be released April 25, 2007, by the National Academies National Research Council.

Although acknowledging that their calculations are not comprehensive, an advocacy group has concluded that at least 18 states, and possibly 14 others, are significantly undercollecting fees for permitted air pollution.

It's crunch time for developing the successor to the 2002 US Farm Bill, set to expire Sept. 30, 2007. Many of the ingredients that may be blended into the 2007 Farm Bill are now becoming public.

New report examines links between climate change and U.S. transportation.

New U.S. refineries will process crude oil from Canada's Tar Sands, which means that much of the pollution associated with that refining will occur in the lower 48.

Compact fluorescent lighting reduces energy use, but what's the trade-off in mercury exposure via broken bulbs and disposal? Now a team of Yale scientists has estimated where there will be a net increase or decrease in mercury emissions.

After recently issuing highly controversial updates for two of the main criteria air pollutants — fine particulates and ozone — EPA is in the midst of its review of two others.

A Congressional watchdog is saying efforts to exempt feedlot air emissions from standard EPA toxics reporting are based on little or no information.

As of Oct. 2, 2007, NOAA and EPA are making daily local forecasts of ground level ozone for the entire contiguous U.S. The latest upgrade adds forecast information for 11 Western states, and improves forecasting for 6 others.