The achievements of tech billionaire Bill Gates are well known, whether it’s helping to build a tech giant in Microsoft or his efforts to improve global health through his foundation. Still, the challenge of climate change can seem daunting, even to him. Gates has spent the last several years examining just how tough the battle will be and admits, “this is going to be harder than any other domain that I’ve ever worked in.” Gates was the keynote speaker to kick off the CERAWeek by IHS conference, one of the world’s largest annual events focused on energy. The conference attracts leading figures from around the world in politics, business and energy, including several from Canada’s oilpatch. This year’s event is focused on the energy transition as many countries and companies try to lower their emissions and meet their climate goals.