As reported in today’s NYT, a new study by McKinsey and Company, greenhouse gas emissions are “growing faster than we thought a few years back”, as stated by Per-Anders Enkvist, one of the study’s authors. Both the full study and an executive summary are available on McKinsey’s website, although you first have to register (for free) with the site. I’m starting to read the executive summary. There’s a very interesting chart on page 5 of the summary, showing the abatement cost per ton of CO2equivalent and total abatement potential for various mitigation steps.
The study finds that there is a potential for reducing GHG emissions by 2030 to 35 percent below 1990 levels, which give us a “good chance” of holding average global warming to at or below 2 degrees celsius.