https://www.datacenterdynamics.com/en/news/elon-musk-xai-gas...
In the end, incentives are all that matter. Do hotels care deeply about the environment, or are they interested in saving in energy and labor costs as your towel is cleaned? Does it matter? Does moralizing really get us anywhere if our ends are the same?
Environmentalists usually care about the environment for its own sake, but my concern is our own survival. Similarly, I don't intrinsically care about plastic in the ocean, but our history of harming ourselves with waste we think is harmless would justify applying the precautionary principle there too.
As far as Musk goes, it's hard to track what he actually believes versus what he has said to troll, kowtow to Trump or "own the libs", but he definitely believes in anthropogenic climate change and he has been consistent on that. He seems to sometimes doubt the predictions of how quick it will occur and, most of all, how quickly it will impact us.
I think there probably is a popular tendency to overstate the predictive value of certain forecasts by simply grouping all climate science together. In reality, the forecasts have tended to be extremely accurate for the first order high level effects (i.e. X added carbon leads to Y temperature increase), but downstream of that the picture becomes more mixed. Particularly poor have been predictions of tipping points, or anything that depends on how humans will be affected by, or react to, changes in the environment.