In place of the stadium where fans saw players like Ty Cobb and Hank Greenberg play, there is only a small slice of it left.

Tiger Stadium, which hosted many games between 1912 and 1999, has been demolished and hauled away. But its remains are not going into a landfill where they will rot for the rest of eternity. Instead, more than 94% of the concrete (17.4 million pounds), steel (11.4 million pounds) and other resources will be recycled.

With less than two years to go before the opening ceremonies of the 2010 Winter Olympics in Vancouver, organizers are making sure the games go down as the greenest in history.

To that end a high-profile green facility has already opened: UBC Thunderbird Arena. The arena will host mens' and womens' ice hockey, as well as sledge hockey competitions during the 2010 Winter Games. It is the first indoor competition venue in the Host Region to complete construction.

A lot is riding on a new Philadelphia-area MLS stadium, besides what's happening on the pitch: the new facility will be the first part of the redevelopment of a brownfield area.

The area of Chester along the Delaware River where the $155-million stadium is planned has been designated by the state as a brownfield area; that is, it will receive special state attention and funding as part of a Brownfield Action Project.

In the Valley of the Sun, the decision by the Phoenix Suns front to embrace the area’s most abundant natural-energy source -- solar energy – was somewhat of a no-brainer.

Specifically, the Suns are installing more than 1,100 Suntech solar panels (covering 18,000 square feet) to the roof of the parking garage at US Airways Center. The resulting grid will be capable of generating 331,233 kilowatt-hours of energy annually – or enough to power US Airways Center for 26 Suns home games.

The resulting savings, as detailed by EI Solutions: the elimination of 44,000 pounds of carbon dioxide, or the equivalent absorbing power of 46 acres of pine trees.