I think environmental issues are the classic tragedy of the commons. The first to put aside environmental issues in favor of riches will have a disproportionate advantage with a proportionate impact. One country burning gas gets cheap fuel to expand their industries but only has a marginal increase in future global warming and (the worst part) almost no impact on today's temperature.

We need more than altruism, which is local sacrifice. We need global enforcement and agreement and, I agree with GP, incentive.