Financial Times: OHigh quality global journalism requires investment. Please share this article with others using the link below, do not cut & paste the article. See our Ts&Cs and Copyright Policy for more detail. Email ftsales.support@ft.com to buy additional rights. http://www.ft.com/cms/s/0/27daae5a-f7e8-11e5-96db-fc683b5e52db.html#ixzz44m1ykqsB ne by one, the descendants of John D Rockefeller, the Gilded Age oil baron, are repudiating the fossil fuels that made the family rich. On the heels of the Rockefeller...