And probably both of these can be explained largely by the fact that most of the energy intensive production happens now in Asia.
They used and installed a fair amount of renewable energy since then. Plus, the similar efficiency gains in the EU and the article have also happened in the US. While there hasn't been government encouragement directly, there have been a lot of things that cause it to happen anyway.
Most energy consumption is for transportation and housing.
The US trade deficit with the rest of the world is only about 3% of gdp, that doesn’t buy much in the way of emissions.