Canada Is a Test of Climate Ambition Apr 09 2021, 8:36 AM April 09 2021, 4:30 AM April 09 2021, 8:36 AM (Bloomberg Opinion) -- Last in a four-part series on oil-dependent economies and their transition to a zero-carbon future. Read part one on Saudi Arabia here, part two on Russia here and part three on Nigeria here. (Bloomberg Opinion) -- Last in a four-part series on oil-dependent economies and their transition to a zero-carbon future. Read part one on Saudi Arabia here, part two on Russia here and part three on Nigeria here. Angel Gurria, preparing to step down after 15 years as secretary general of the Organization for Economic Cooperation and Development, had parting words of advice as the world considers its post-Covid recovery: âPut a big fat price on carbon.â