Trump's envoy Witkoff meets Putin - News compact: The most important summarized

US envoy Steve Witkoff is set to meet President Putin in St. Petersburg to discuss peace negotiations regarding the Ukraine conflict. Meanwhile, Chancellor Merz announces significant investments in Germany following a summit. The EU has unveiled a new Arctic strategy to address regional conflicts, and Nigeria reports its first Ebola case since 2014. Additionally, a UN report warns that global emissions are far from meeting climate targets, with potential temperature rises of up to 2.8 degrees by 2100.