E - A Negative SCC

It's important to recognize that all of the excerpted materials here come from the same 2014 report:

2014 ACCCE_The Social Costs of Carbon No Social Benefits

What that report basically does is quantify all of the economic benefits of today's society, attribute all of those benefits to CO₂ emissions, and then calculate the $/ton benefit. That's one way to come up with a "negative" social cost of carbon, albeit having nothing to do with seriously looking at the potential economic costs of climate change going forward.