April 25, 2007–Many cities are embarking on coordinated programs designed to significantly increase their tree cover, in order to address issues such as aesthetics, energy use, carbon sequestration, air quality, and stormwater runoff.
March 28, 2007–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.
March 14, 2007–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.
October 3, 2001–The closure of U.S. airports following the terrorist attacks of Sept. 11, 2001, provides a rare opportunity to gauge the contributions of airports and related activities to a city's air pollution.