A Chinese campaigner has urged U.S. President-elect Barack Obama to prove his green credentials, asking him to offset the emissions generated by his inauguration by funding a forest in China.

A carbon fund named “Obama, future” could invest in increased forest coverage in another country and Obama himself could plant a tree there, Lin Hui said in an open letter, published on www.ditan360.com. Lin hopes that country will be China.

Lin’s appeal is based on estimates by conservative U.S. think-tank, the Institute for Liberty, that people travelling to attend Tuesday’s inauguration would generate 220,000 tonnes of carbon dioxide.

“Obama’s presidency is a big opportunity. The whole world is pinning their hopes on him, even the greens, believing he’ll be different than Bush,” Lin told Reuters.

The website, run by a team of volunteers, contains news articles and information designed to educate Chinese about a low-carbon lifestyle.