A global-warming response that accommodates prosperity should have more appeal than one that promises stagnation. So why doesn’t the Asia Pacific Partnership on Development and Climate receive more attention?Signed in 2005 by India, China, South Korea, Japan, Australia, and the US, the partnership emphasizes markets and technology in pursuit of economic growth and environmental improvement for developing countries. Because it relies on voluntary action and innovation instead of mandates, backers of the rival Kyoto Protocol have dismissed it as unsubstantial. Yet their own approach is foundering as one ratifying country after another falls behind in its efforts to meet targets for em...