The Christian Democratic Union Party's win in Germany ensures that Europe's biggest economy is likely to continue to lead on climate change — though with a different framing and focus. Why it matters: Germany has taken aggressive action to lower emissions and push so-called "green" policies within the European Union and internationally.

The likely next chancellor is unpopular, and his country’s economy has stalled. But his penchant for risks could help lead to a European showdown with President Trump.