The "conservative" carbon tax proposal seems like a long time ago:
A little over a year ago, 195 countries signed on to the historic Paris Climate Accord to limit global warming pollution. This year, the United States pointed a loaded gun at its own foot, and President Trump pulled the trigger, announcing he will withdraw from the agreement. But the rest of the world is moving ahead with carbon pricing programs that will give other countries a head start in the race to a clean energy economy. Notably, The United States’ neighbors to the north and south are adopting national carbon pricing programs in 2018, and the European Union and China are allying to become global leaders in the transition to a low-carbon economy. ...
In December 2015, 195 nations signed on to the Paris Climate Accord, agreeing to try to limit global warming to no more than 2 degrees—or maybe just 1.5 degrees!—celsius (3.6 or 2.7 degrees Fahrenheit, respectively). The signatory nations—accounting for more than 95 percent of the world’s GHG emissions—are drawing up plans, and many are already putting them into action.
Article 6 of the Paris Accord lays the groundwork for an international carbon pricing regime. Most countries want in: nearly 100 nations, accounting for 58 percent of global GHG emissions, submitted initial plans saying they are interested in participating in international carbon pricing to help them meet their pollution reduction goals.
Several are already implementing domestic or regional prices, as shown in the map above. Add an international program to existing progress, and a price could soon be in effect across much of the globe, covering about two-thirds of global emissions.
"At what point do they start laughing at us as a country?" Er, now?