Russian President Vladimir Putin attends a meeting with young award-winning culture professionals via videoconference in Moscow, Russia, Friday, March 25, 2022. Russia is demanding payment in rubles for its natural gas exports to Europe. And that is rattling markets already in turmoil because of the war in Ukraine. Already high gas prices have gyrated after the announcement by President Vladimir Putin last week. (Mikhail Klimentyev, Sputnik, Kremlin Pool Photo via AP, file)