On the BBC's website is a Flash game. You are the leader of the European Union (or something like that), and you have the opportunity to shape EU policy, and negotiate with other geopolitical blocks in the world. The game looks at the impact your policies have on your popularity - will you remain in office? - and on global warming (assuming you accept the validity of the currently popular models, that is).
The significance isn't that it is a foundation for European political policy, but the game does at least show some of the options that might be available in the next few decades, as well as highlighting the fact that it is unusual to find something that is unequivocally good for everyone all the time.