OLPCO2e was a proposed project to somehow associate OLPC with electronic CO2 certificates - since the XO laptops are some of the lowest-power and greenest laptops around. The proposal mentioned the names of many distinguished global initiatives, including the second UN Millennium Development Goal.
No concrete connections between OLPC and these certificates was made, and the project was abandoned in mid-2009. This page is kept for historical purposes.
For older discussions about the topic, see the talk page.