National (U.S.)

Harmful algal blooms are increasing and now occur offshore of every coastal state and in some inland waters.

Lately the term "green infastructure" has gotten more specific as many cities seek more robust and cost-effective stormwater management.

The summer of 2007 was another hot one in the US and worldwide.

Vehicle fuel economy is a major component of the ongoing energy and carbon discussions, so it's helpful to know how the current models are performing.

EPA is required to update its standard for each of the six main "criteria" air pollutants every five years.

The US Office of Surface Mining Reclamation and Enforcement (OSM) is trying once again to establish a rule updating its regulation of coal mining waste placement.

With hurricane season in full swing, NOAA's new resource for identifying historical hurricane tracks may be a useful tool.

This fall the US Green Building Council expects to launch its rating system for residential construction.

As beach season crests in August, many swimmers will want to know whether, or how much, their favorite beach is contaminated.

Scientists advising the U.S. Environmental Protection Agency on air pollution issues are criticizing EPA higher-ups for ignoring their scientific counsel. Specifically, they are accusing the Bush Administration of excising science from the process the agency uses to determine how clean the air we breathe should be. The Clean Air Scientific Advisory Committee (CASAC) challenges EPA administrator Stephen L. Johnson.