The decades-long federal program to clean up Chesapeake Bay is showing signs of success and is supported by politicians of both parties.

The abrupt change in direction of a Yukon river because of a rapidly melting glacier has attracted international attention.

Rain poured onto Washington D.C. on Earth Day 2017, yet tens of thousands of people gathered on the National Mall to rally for science and call for scientific integrity in the nation’s decision-making, particularly on climate policy.

Like it has done to all good ideas, consumer culture hijacked Earth Day.

To be clear, I’m not asking "Do we care about climate change?" or "Are we worried about climate change?" or "Would we like to see something done about climate change?"

A team of scientists say a melting glacier in Canada's Yukon has caused a river to completely change course.

The Nile River is under assault on two fronts – a massive dam under construction upstream in Ethiopia and rising sea levels leading to saltwater intrusion downstream.

Midway through a lackluster freshman year at the University of San Diego, I called my parents and told them I planned to leave school after the spring semester.

At the COP 21 climate convention in Paris at the end of 2015, leaders from 194 nations agreed to pursue actions that will cut greenhouse gas emissions enough to keep global warming within 1.5 degrees Celsius (2.7 degrees Fahrenheit) above pre-industrial conditions.

There’s no denying that the aviation industry has taken a toll on the environment.