Royal Dutch Shell PLC Chairman Jorma Ollila is joining Chief Executive Ben van Beurden in backing efforts to limit carbon emissions ahead of international climate talks in Paris later this year. Mr. Ollila was set to tell employees Wednesday that society must find a “middle way” that “doesn’t threaten economic growth,” according to a transcript of a speech the company disseminated. “Shell has been open and firm in its advocacy of cleaner-burning natural gas, carbon capture and storage,” which takes carbon from combustion and stores it in places like underground reservoirs “and carbon pricing. And we’re hopeful that policy makers will recognize the value of all three at the gathering in Paris later this year,” the transcript says. Shell, which is heavily invested in big, long-lived natural gas projects, has been increasingly vocal in calling for energy companies to participate with policy makers in addressing climate change. Mr. […]