Investment giant challenges Exxon and Chevron on climate crisis.

Norway's sovereign wealth fund, the world's biggest investor in the stock market, will back calls for ExxonMobil and Chevron to set more aggressive emission reduction targets proposed by climate activist group Follow This at the companies' annual shareholder meetings. The group has called on the companies to set more ambitious targets for cutting their "scope 3" emissions by the end of the decade. The fund also called for the resignation of Chevron CEO Mike Wirth and ExxonMobil CEO Darren Woods as chairmen of the companies' boards.