In “Roughing It,” Mark Twain wrote: “Travel is fatal to prejudice, bigotry and narrow-mindedness.” I have been lucky this year to travel to places — both in the United States and abroad — that...

In the past month, President Obama has announced the designation of three new areas as national monuments, totaling over a million acres of newly protected land. This action adds to 16 national monuments...

The expiration of the United Nations Millennium Development Goals this year brings to mind important questions. In 2000, the UN set 2015 as the deadline to eradicate global poverty, promote gender equality,...

A few weeks ago, Indonesia sank forty-one fishing vessels after catching their crews fishing illegally in its waters. The event was an important first. A market and biosphere that has been barely regulated...