I agree about the former, but not with the last two sentences.  China and to a lesser extent India have massive incentives to get clean energy ASAP.  The pollution in China is out of control, and is a major toll on public health, tourism, and agriculture (especially fishing).  In the US, with its low population density, we worry more about climate change, which is more abstract than the local environmental pollution that is so visible and problematic in Asia.<p>While unilateral US action through regulation and taxation might not directly do anything to ameliorate the global problem, US investment in technology might. The US can absolutely sell technology to China and India, whether it&#x27;s intellectual property sales&#x2F;licensing, product sales&#x2F;licensing, or simply by charging huge amounts of tuition for Asian engineering students to learn at US universities (this is currently a very large subsidy to US education).