RANDALL PARKER: “The CO2 that dissolves into the ocean continues to worry me more than global warming. . . . We have lots of ways available to cool the planet with cheap affordable climate engineering. So global warming seems reversible if it becomes a problem. But how to deacidify the ocean if high atmospheric CO2 causes lots of CO2 to dissolve into the ocean?” All the more reason to switch to a nuclear-electric economy as soon and as much as possible.