Carbon dioxide emission volumes, trends, and sources vary substantially by state, according to a report released Nov. 12, 2009, by the advocacy group Environment America.

Results of sampling the tissue of fish caught in freshwater lakes throughout the US reveal widespread contamination by pollutants such as mercury and PCBs.

Most of the 580-plus coal-ash impoundments and landfills in the U.S. would make a good local environmental story, and the information available on them is growing.

An international team has pulled together what it says is the first global assessment of tree deaths linked with drought and heat stress. They cite 88 cases since 1970 on six continents.

Advocacy group Environment America based its conclusions on 2007 US EPA Toxics Release Inventory data, while overcoming some of the errors and limitations embedded in TRI.

Dogging the resulting developments of a new EPA policy could lead to many stories that focus on both the specific cases and the underlying principle of cumulative assessments of pollutants.

The widespread perception of water abundance in Canada is a myth, according to a new report by the World Wildlife Fund-Canada. See details for the 10 selected rivers, most of which cross political boundaries within Canada or between Canada and the United States.

Strenuous local battles sometimes erupt over "daylighting" (freeing streams from culverts and paved channels), an increasingly popular method for state, county, and local governments to improve stormwater management and water quality.

Foreign ownership of privately-held US agricultural lands, on the rise for the second year in a row, can affect the local economy, politics, culture, foreign investment in the US, food security, and agricultural subsidies.

As debate over climate legislation rages, reporters will encounter many confusing and seemingly contradictory statements about the costs of changing US energy practices. You may help your audience with an understanding of how incomplete the cost figures cited by companies and politicians often are.