Good vs. evil? The thin gray line between green and 'dirty' energy companies

A new study sparked by a Callaway Climate Insights report last year argues for working with fossil fuel giants vs. banning them.

Patent thickets are a thorny issue.

(Mark Hulbert, an author and longtime investment columnist, is the founder of the Hulbert Financial Digest; his Hulbert Ratings audits investment newsletter returns.)

CHAPEL HILL, N.C. (Callaway Climate Insights) — Fossil fuel companies’ considerable innovation in the green energy space does not appear to be motivated b…