An abundance of fossil fuels combined with advances in technology to harness wind and solar power has sent energy prices crashing around the world. WSJ explains how it all happened at once. Photo illustration: Carlos Waters/WSJ (Originally published July 21, 2020) OPEC deferred by a day a decision about whether to extend oil output cuts, according to officials familiar with the move, rolling the decision into Tuesday when the cartel plans to meet with Russian-led producers. The Organization of the Petroleum Exporting Countries will meet then with Russia and others that are part of a wider group called “OPEC-plus” to hammer out a decision on production policy in the next quarter. OPEC…