Green Scene: BPA-Free Water Bottles

Lighten your planetary load, water bottle style, with these BPA-free water bottle alternatives.

There's been much debate lately about the health risks of BPA–a chemical commonly used to make polycarbonate (hard, clear plastic usually labeled #7/PC) water bottles–but no verdict. While scientists continue to study the issue, some hikers are trading in their old bottles without waiting for the results. Here are five BPA-free alternatives.