Activist investor Bluebell Capital Partners has again asked Glencore Plc to overhaul its climate policy, while seeking support from other shareholders to push for reform at the commodities giant. London-based Bluebell wants Glencore to put forward a plan at next year’s annual meeting to separate its coal activities, according to a June 8 letter. Bluebell also asked for more detail on the firm’s pathway to net zero and for an independent chairman of the health and safety, environmental and communities committee.