Investors concerned about the climate crisis have been pushing major oil and gas companies to reduce emissions.Reed Saxon/Associated Press Investors shot down proposals urging Exxon and Chevron to set more ambitious climate targets. Weak support comes two years after an activist hedge fund forced a shake-up on Exxon's board. Climate-minded investors blame Big Oil's soaring profits and Republican's criticism of ESG. This article is part of Insider's weekly newsletter on sustainability.