Damage to Japan’s Fukushima Daiichi nuclear power plant has reignited debate over the safety of nuclear power and highlighted questions over aging power plants, safety procedures, and waste disposal…

Western Europe’s burgeoning Islamic population continues to spark concerns about Muslim assimilation and a cultural divide.

As the United States looks to reform its health care system and expand access to the uninsured, countries that have moved toward universal health care may offer lessons.

Interest in nuclear power is increasing, but securing adequate uranium supplies for nuclear fuel faces challenges ranging from a flagging mining sector to fears of nuclear weapons proliferation.

Loss of forests is a major contributor to greenhouse-gas emissions. Plans to devise a policy tool for using trees for carbon dioxide sequestration are now under way.