G-20 shut Trump out on climate, strike deal on trade

World powers lined up against U.S. President Donald Trump on climate change, reaffirming their support for international efforts to fight global warming.

The Group of 20 summit that ended Saturday in Hamburg also revealed tensions on trade, as the U.S. administration and international partners forged a deal that endorsed open markets but acknowledged countries had a right to put up barriers to block unfair practices.

Key points from the G20 summit of world leaders

Leaders of the Group of 20 rich and developing countries spent two days trying to come up with common positions on climate change, trade and migration at their summit in Hamburg, Germany.

Implementation depends on the will of national governments to take action, and compliance isn’t perfect. But a common statement of purpose sets the tone for policy and enables peer pressure.

Here’s a look at what the leaders did — and didn’t — agree on:

Hamburg's spectacular Elbphilharmonie opens for 1st concert

Hamburg's spectacular new Elbphilharmonie concert hall finally hosted its first concert on Wednesday night, several years behind schedule and far over the original budget.

President Joachim Gauck and Chancellor Angela Merkel were among the guests at the maiden concert that was conducted by Thomas Hengelbrock.

The NDR Elbphilharmonie Orchester is playing music from the renaissance to the present, including works by Beethoven and Wagner and a new piece by German composer Wolfgang Rihm.