Former Exxon Mobil Corp Chief Executive Officer Rex Tillerson on Wednesday denied misleading investors about how the oil major measured potential costs of climate change, as he testified in a closely watched civil lawsuit brought by New York’s attorney general. The case, filed last October in Manhattan state court, last week became the first of several climate-related lawsuits against major oil companies to go to trial. The attorney general alleges that Exxon caused investors to lose up to $1.6 billion by falsely telling them it had properly evaluated the impact of future climate regulations on its business. The company used a “proxy cost” of up to $80 per ton of carbon emissions in wealthy countries by 2040, but internally used figures as low as $40 per ton or none at all, the attorney general has said. Exxon has assailed the claims as false and politically […]