Europe's heat wave exposes buried history and new threats — Nazi-era wrecks emerge from the Danube, nuclear reactors face cooling risks, and Greece battles deadly wildfires.

(Bloomberg) -- Europe’s biggest rivers, vital arteries for the region’s heavy industries, are drying up after the region was seared by a series of heat waves.

Prolonged drought and extreme heat across Europe have also triggered an energy crisis. For the first time ever, Hungary announced the shutdown of the country’s only nuclear power…

Eastern Europe nears energy emergency as Danube water level hits record low