As Canada battled wildfires from its west coast to the prairies, another blistering heat wave threatened to descend this week on British Columbia, where more than a million acres have burned since April. In recent months, a series of near-relentless heat waves and a deepening drought linked to climate change have helped to fuel exploding wildfires. In Manitoba, a drought has forced livestock farmers to consider selling some or all of their cattle. …northwestern Ontario is also bracing for a possible outbreak of fires later this week… The risks from these fires was illustrated in southern Oregon, where the Bootleg Fire grew so large and hot that it created its own weather, triggering lightning and releasing enormous amounts of smoke. …The wildfires scorching areas of Canada and the United States in recent years may be only the beginning of the areas’ woes, according to a new United Nations scientific report.