I worked 18 years for an oil major. My book “The Shale Controversy" addresses the dilemma for oil majors posed by climate change, and potential solutions to the dilemma. As a petroleum engineer, I traveled the world as a consultant, and taught classes in shale gas/oil, fracking, and earthquakes. The first half of my book deals with the pros and cons of fracking. The dilemma faced by oil companies, who contribute heavily to greenhouse gas emissions, forced me to investigate the transition to renewables, and how long this should take. I live in New Mexico, USA where I love to hike and play pickleball.