Science

Heads of state from well over 100 countries came to New York City this week to find ways to slow climate change. The summit is a dry run for a meeting next year to draft a treaty on global warming.

It's not violence on the job that makes some pro football players beat their wives or children, psychologists say. It's often childhood experience, fanned by a culture that accepts such behavior.

The World Health Organization warns of more than 20,000 cases by early November if help doesn't arrive quickly in West Africa. The CDC projects 1.4 million cases by late January.

"There is such a thing as being too late," President Obama says in his address to the U.N. Climate Summit. The White House is touting tools to boost "global resilience" in the face of climate change.

Tired of waiting for a cure for breast cancer, a coalition of activists now leans hard on Congress to steer money to particular research projects. Critics say that approach may miss promising leads.

India's Mars Orbiter Mission is set to reach Mars on Wednesday, just days after a U.S. NASA probe began its orbit around the Red Planet. The difference? India did it on a much tighter budget.

Business and corporate leaders are starting to take climate risk seriously enough to put money on the table to do something about it.

Donors like being part of a recovery story. It's hard to tell that kind of story about Ebola.