The epicenter of Europe’s heat wave is shifting back to fire-ravaged Greece, as temperatures are set to hit 48C (118.4F) by Wednesday. Firefighters on Rhodes, the Greek island from which thousands of tourists were evacuated over the past three days, are using jets and helicopters to prevent a blaze spreading toward the village of Gennadi. In Corfu, the village of Loutses has been evacuated, with…