This article is also available as a pdf version. A young man walks toward the entrance to an underground subway. As he starts down the escalator, his heart rate increases, but he continues. He ...

After a 12-day crossing, and a hard slog through sea ice, the field work on this Antarctic expedition is ready to start. By Raymond Zhong Democrats demanded information from seven top U.S. oil ...

Widespread ocean pollution threatens the health of more than 3 billion people, international study led by Boston College researchers shows Ocean pollution is widespread and getting worse, and when ...