In one of the towns in Normandy where US Army paratroopers fought and died on D-Day in World War II, a French store owner already has readied the “Trump 2020” flag that he plans to unfurl in celebration if the US president wins a second term.But in Sweden, a scientist alarmed by the increasing signs of global warming she witnessed on her latest Arctic research trip is hoping Trump is voted out, not simply because she believes Democrat Joe Biden will do better against climate change but also…