Just because a gas has greenhouse gas properties that doesn’t mean it meaningfully contributes or enhances the greenhouse effect.
Two profs (one a “climate scientist”) write in the Los Angeles Times:
But methane, for example, is an irrelevant greenhouse gas.
I also take exception to this:
How do these profs know that climate change “seriously harms human well-being”? That certainly wasn’t the case, for example, with our exit from the Little Ice Age. How do they know thath whatever climate change is ongoing won’t be similarly beneficial?