Yesteday, I posted about Hillary Clinton's efforts to offset her campaign's carbon footprint, taking the lead above the other campaigns. 

When digging into why I'm proud of her and what she's accomplished, as asked by Ben Hocking, I came across this.

While she served on the Wal-Mart Board, though she couldn't do much to stop the negative actions against unions at the time, she did manage to push women's and, importantly here, environmental causes.

Source: 

http://www.nytimes.com/2007/05/20/us/politics/20walmart.html?pagewanted=print

Mrs. Clinton had greater success on environmental issues. At her request, Mr. Walton set up the environmental advisory group, which sent a series of recommendations to the company’s board.

When it came time to pick members, Mrs. Clinton, who led the advisory group, reached out to at least two colleagues from the McGovern presidential campaign — Mr. Mauro and Roy Spence, who headed an advertising firm in Texas that did extensive work for Wal-Mart.

Under her watch, the advisory group drew up elaborate plans. Consumers would bring in used motor oil and batteries for recycling. Suppliers would reduce the size of their packaging. And Wal-Mart would build stores with energy-saving features.

Wal-Mart executives put much of the program into place. In 1993, for example, they opened an experimental “eco-store” in Kansas, with skylights and wooden beams from forests that had not been clear cut.

One executive derided it as “Hillary’s store” because it was more expensive to build than the average Wal-Mart, but several of its features, like the skylights that cut energy bills by reducing the need for artificial lighting, were widely copied across the industry.

“We were on the leading edge of something that is being mandated now,” said Bill Fields, the head of merchandise at Wal-Mart in the early 1990s who worked closely with Mrs. Clinton on the environmental project.