National (U.S.)

In alternative-fuel transport circles, the plug-in hybrid electric vehicle (PHEV) is the current Holy Grail.

Often, the workings of the federal legislature appear to be "hiding in plain sight," obscured by arcane, cumbersome language and information systems.

You may never have thought it possible, but thanks to climate change insurance has become an exciting - even compelling - story.

The short-lived El Nino pattern of 2006-2007 is likely already transitioning to a La Nina pattern, NOAA officials said Feb. 28, 2007.

During the past two years, and especially since last fall, strong hints of far greater than normal die-offs (of honeybees) have been appearing all over the country, in at least 24 states (map of affected states).

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.

NASA to hold media briefing Jan. 24 for planned Earth Science program activities.

Green Building Council releases its green building rating system for new and remodeled houses.

Eagle numbers vary nationally in first year of delisting.

Climate change, ecology and other environmental topics focus of AAAS sessions.