While most can be grouped into shades of green, not all are.

After decades of growth driven by diamond mining, Canada’s Northwest Territories are facing the closure of three major mines ...

John Weissenberger is a Calgary petroleum geologist and executive. He has conducted and sponsored studies on the immense ...

One of southern California’s oldest giant sequoias holds more leaves than there are people in China. It has stood since there were fewer people on Earth than live in modern Japan—more than 3,000 years ...

The Dark Forest theory is one proposed solution to the famed Fermi Paradox, which has bewitched astronomers for more than half a century. To put it concisely, the paradox asks if the cosmos is nearly ...