As Europeans brace for gas shortages triggered by Russia’s war on Ukraine, European Commission President Ursula von der Leyen reiterated her call for consumers to save energy. If people across the EU reduce their heating temperatures by just 2 degrees Celsius, and raise the temperature on their air conditioning by 2 degrees Celsius, this would save energy equal to all the gas delivered by the Nord Stream 1 Baltic Sea pipeline from Russia, she said. “So there is a lot of potential in that,” von der Leyen said after an EU summit in Brussels. Energy sources must be diversified and investments in …