President Trump is scheduled to appear at an Independence Day celebration at Mount Rushmore on July 3. For some, this event will symbolize love of country. Others will see it very differently.

A century ago, the influenza pandemic killed about 50 million people. Today we are battling the coronavirus pandemic. Are we any better off? Two social scientists share five reasons we have to be optimistic.

In the 1800s, Americans hunted many wild species near or into extinction. Then in the early 1900s, the US shifted from uncontrolled consumption of wildlife to conservation. Could Asia follow suit?

Small-scale gold mining operations in developing countries are major sources of toxic mercury pollution, using techniques that haven't changed much since the California Gold Rush 150 years ago.

April 22, 2020 is the 50th anniversary of Earth Day, which catalyzed action to protect the environment not just in the US but internationally.