The group's mission is simple, if grandiose: to reforest the land with a variety of the most interesting tree species from around the world, and by extension, halt and reverse climate change.

该组织定下的研究目标既简单又宏大：让那些来自世界各地且最有意思的树种在大地上汇聚成林，进而阻止并逆转气候变化。

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In many cases, games with a particular educational or social mission have tended instead to go the reverse route, starting with the message and then building a game around it.

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