HOUSTON — Exxon Mobil, under increasing pressure from investors to address climate change, announced on Tuesday that it had the “ambition” to reach zero net greenhouse gas emissions from its operations by 2050.The oil company, the largest in the United States, still remains behind several of its major competitors in its public climate commitments.Exxon said it had identified 150 modifications of its exploration and production practices to help reach its goals, including electrification of operations with energy from renewable sources. Initial steps will include elimination of the flaring and venting of methane, a byproduct of drilling that is a powerful greenhouse gas.“We’ve got a line of sight,” Exxon’s chief executive, Darren Woods, said in an interview. “By the end of this year, 90 percent of our assets will have road maps to reduce emissions and realize this net-zero future.”Exxon’s targets include so-called Scope 1 emissions, which are produced d …
