Climate activists have spraypainted a superyacht, blocked private jets from taking off and plugged holes in golf courses this summer as part of an intensifying campaign against the emissions-spewing lifestyles of the ultrawealthy. Killeen and others from climate activist group Futuro Vegetal — or Vegetable Future — spraypainted a $300 million superyacht belonging to Walmart heir Nancy Walton Laurie. “Luxury …
