It's all about the vapor in my book. Claims that vapor is a strong positive feedback just are not supported by observations. Models assume a static relative humidity, which when combined with specific humidity creates a high positive vapor feedback and Runaway Greenhouse Effect. Observations show a decreasing relative humidity which when combined with specific humidity creates a low vapor feedback, possibly even zero feedback. The difference between a climate sensitivity of ~3C and ~1.6C is a couple hundred years of extra time to change THE RIGHT WAY. As I see it, the world is being pushed into changing the wrong way.