Global energy bosses assembled in Moscow on Wednesday said the world needed Russian gas to keep the lights on, in a clear message to U.S. President Donald Trump who has warned he may impose sanctions on Russian gas export projects.Trump’s administration, citing what it calls Russia’s failure to act as a good global citizen, has said it may take steps to block the Nord Stream 2 gas pipeline, which will increase the volumes Russia can export to northern Europe. The U.S. position has prompted a backlash from the Kremlin, and from business groups in Germany, and on Wednesday leading figures in the global energy industry attending a forum in the Russian capital joined the chorus. […]