According to a recent study published in the scientific journal Climatic Change and reported by The Guardian, 90 companies have been responsible for nearly two-thirds of all carbon dioxide and methane gas emissions in the entire world since 1750.

In the video below, Motley Fool contributor Jay Jenkins highlights the top two investor-owned companies, ExxonMobil (NYSE:XOM) and Chevron (NYSE:CVX). According to Jay, this should be a troubling revelation for long-term investors in these oil giants.

Fool contributor Jay Jenkins has no position in any stocks mentioned. The Motley Fool recommends Chevron. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.