TipSheet

A likely upcoming shift in California's strategy to reduce smog from cars could affect new vehicles rolling onto roads nationwide over the next few years.

Timber-rich states and regions grapple with public calls for ending clear-cutting.

On Feb. 1, 2001, the Army Corps of Engineers is expected to release its final implementation plan for returning the flow of the Missouri River to more natural levels.

The heads of Obama administration Congressional committees and subcommittees will likely be in the spotlight in the coming months. This overview will help you get a feel for who these people are, or who will soon be chosen.

The Southern Environmental Law Center's top 10 places in America's South that face "immediate, potentially irreparable threats in 2009" represent a cross-section of the major environmental issues facing these states.

A US House Oversight Committee report released in January 2009 found that federal agencies frequently ignore the findings and recommendations of their inspectors general.

In one of many last-minute actions, the Bush administration delayed a decision on a drinking water standard for the contaminant perchlorate (used in rocket fuel, explosives, fireworks, and many other industrial products, and also occurs naturally), but issued a temporary advisory recommendation. This has immediate implications for at least 31 large US utilities, and perhaps hundreds more.

The December 2008 coal-ash spill at a Tennessee power plant has been making headlines for two weeks — but few journalists realize there are coal-ash stories to be unearthed in many communities. Here are some clues for finding them.

Concerns over emissions from formaldehyde in pressed-wood products have been building for many years. California's new rules addressing the problem went into effect Jan. 1, 2009. Now EPA is looking at following suit.

If you need information on land use changes over time, or on current land uses and character, you may want to check out decades-worth of globe-spanning satellite images that USGS has made freely available to the public.