GARMISCH-PARTENKIRCHEN, Germany (Reuters) – Hundreds of protesters marched in the southern German town of Garmisch-Partenkirchen on Sunday, near where leaders of the Group of Seven countries are meeting, demanding action on climate change. Leaders of the G7 – the United States, Germany, France, Britain, Italy, Canada and Japan – started a three-day summit on Sunday at Schloss Elmau in the Bavarian mountains, set to be dominated by the war in Ukraine. Under a banner reading “Global Justice, Saving Climate Instead of Arming” several speakers addressed a crowd of protesters, calling for more acti…