In 2012, energy-related carbon dioxide emissions in the U.S. fell to 1994 levels.
Flawed advice and ratings from a private food-inspection firm led to tainted cantaloupe that killed 33 people, say farmers who are filing suit against the firm.
Frackers have been flouting a Colorado rule that requires them to disclose the chemicals they use. Seven companies have been fined $1,000 apiece.
It's oyster season, but many oyster beds in the Gulf of Mexico are empty. Thanks to the 2010 BP oil spill, lots of other fisheries are suffering too.
As the world warms, winemakers are moving into new regions. Along the California coast, that's bad news for redwoods.
A train laden with propane and oil jumped off the tracks in Alberta, triggering a big fire and causing a nearby town to be evacuated.
If you want to avoid lung cancer, the United Nation's cancer-research body has some advice for you: Don't breathe.
Republicans cheered when EPA workers were furloughed. But poll results show that most Americans wanted those workers back on the job.
Climate research and other sciences took heavy hits when the federal government shut down for two weeks.