EU braces for stormy G20, climate battle with Trump

European leaders vowed Thursday to defend the landmark Paris climate pact at a G20 summit next week, setting them on collision course with US President Donald Trump at what is expected to be a stormy meeting.On the biggest challenges, Europe was now "a reference point," said EU Council President Donald Tusk after the G20 preparatory meeting hosted by German Chancellor Angela Merkel.The EU stood for a rules-based international system, he said, vowing that "we speak with one voice" at the G20 summ