Guardian: The chief executive of the worlds largest oil company will on Wednesday face two of the firms most persistent environmental activist shareholders a nun from New Jersey and a friar from Milwaukee. ExxonMobil boss Rex Tillerson has a long history of civil but strained sparring with Father Michael Crosby and Sister Pat Daly at its annual shareholder meetings. Crosby is leading a group of investors calling for Exxon to give a seat on its board to an eminent climate expert, while Daly is pressing...