A look at the main, factually unsound complaints about Neil deGrasse Tyson's series.

The Dan River coal ash spill is a case study in what happens when a regulator gets too friendly with the industry it regulates.

A new study looks at historical examples of ancient civilizations that failed and concludes that we may be headed in that direction.

Minnesota became the first state to place a dollar amount on how much solar power generated by customers is worth to the utility and to society as a whole.

"Sometimes the right thing to do in ordinary times is exactly the wrong thing to do in extraordinary times."

A new citizen science project launched by the University of Oxford will probe whether global warming led to massive floods in the UK this winter.

The Environmental Protection Agency on Monday finalized major new regulations that will create a cleaner environment, improve public health and help flight climate change.

About a thousand students gathered outside the White House over the weekend, some submitting to arrest, to urge President Obama to reject the controversial oil pipeline.

We need to take collective ownership of our fight for a cleaner, more equitable planet before it's too late.

Industry groups are challenging the EPA's ability to regulate climate change.