How exactly could gas drilling make you ill? Let us count the ways.

Neil deGrasse Tyson explores the surprising connection between the age of the Earth and the dangers of lead.

The connection has been "confirmed by many different studies by different investigators over different time periods."

What’s wrong with the way restaurant workers are treated and compensated? Hundreds of people with experience in the food industry wrote to Bill with their thoughts.

Everyone gets healthier and happier (except maybe a few corporations).

The rate of uninsured is now about 50 percent higher in states that refused to expand Medicaid.

Activist Saru Jayaraman — who is being honored at the White House today — recently talked to Bill about the fight for better wages and working conditions for America's 10 million restaurant workers.

A future in which governments regulate carbon emissions is an unrealistic thing to imagine, and not worth planning for, says the company.

In her new book, Seeds of Hope, anthropologist Jane Goodall writes about a new movement in gardening that transforms the “typical ridiculous American lawn” into a native plant habitat for bees, birds and insects.

Tell us what you think: What’s wrong with the way restaurant workers are treated and compensated?