notwithstanding the quote you're replying to references calculated cost savings by 2030, what are YOUR PREFERRED economic models and what do they predict as the cost of climate change by 2030?
Any economic model that claims to make predictions for 5 years or more is creative fiction. Such claims can't be treated as fact or even as a likely probability. We need to make decisions based on the assumption that anything could happen from a disaster that has nothing to do with climate to CO2 induced warming turning out to be a complete non-issue to it being a big problem as claimed.