Among the efforts to take affluence seriously are various proposals to reduce CO2 emissions while still permitting development to occur. Under these proposals, there are direct or indirect economic benefits for the less developed nations and substantial costs for the developed countries. As one might expect, developed countries either reject such proposals outright or provide only half-hearted support. One could enhance the appeal of the climate and development proposals by adding a call for a reduction in working hours. Addressing climate change, fostering development, and promoting a shorter work week is a policy package with benefits for the majority of the residents of the developing and developed countries.