Some Insurers Promoting ‘Green’ Products

Maybe this press release makes more sense to you than it does to me.  Although it is touting the beginnings of ‘green’ insurance products, it seems kind of stingy with the evidence that these exist in any significant number.  As far as giving credits or reduced rates to insure Green buildings, is that actuarially based? If I build my house out of salvaged Diet Coke cans, is there a risk-based reason my homeowners insurance premium should be less than my neighbor’s?