On behalf of environmentalists everywhere, I would like to formally apologize for the climate scare we created over the last 30 years. Climate change is happening. It’s just not the end of the world. It’s not even our most serious environmental problem. I may seem like a strange person to be saying all of this. I have been a climate activist for 20 years and an environmentalist for 30. But as an energy expert asked by Congress to provide objective expert testimony, and invited by the Intergovernmental Panel on Climate Change (IPCC) to serve as expert reviewer of its next assessment report, I feel an obligation to apologize for how badly we environmentalists have misled the public. Here are some facts few people know: Humans are not causing a “sixth mass extinction” The Amazon is not “the lungs of the world” Climate change is not making natural disasters worse Fires have declined 25 percent around the world since 2003 The amount of land we use for meat—humankind’s biggest use of land—has declined by an area …