Ran across this on Ballparkdigest.com
Reds to go carbon-neutral on Earth Day
On Opening Day, the Cincinnati Reds followed the lead of the 79th Academy Awards ceremony and partnered with Duke Energy to become the first professional sports team to go "carbon neutral." As they did on Opening Day, for Sunday's Earth Day game the Reds will purchase from Carbon Solutions Group credits called Voluntary Emission Reductions (VER), which are used to fund energy projects that help reduce the amount of carbon emissions released into the atmosphere. The electricity and natural gas used at Great American Ball Park on Opening Day will create carbon emissions. By purchasing the VER credits, the Reds are giving back to the environment by helping fund such energy projects as wind mill and solar farms that emit no carbon.