US oil company ran 1977 article predicting climate crisis could cause starvation

Marathon Petroleum predecessor warned of potential for social and economic calamities' in decades-old publication

The corporate predecessor to America's largest refiner of oil, Marathon Petroleum, explained in a company periodical nearly 50 years ago that global temperature rise potentially linked to industrial expansion" could one day cause widespread starvation and other social and economic calamities".

This decades-old description of climate breakdown is from a 1977 issue of the magazine Marathon World and is attributed in the article by an unnamed author to several experts including a scientist working for a top US agency.