CNBC Daily Open: Record heatwaves hit Europe's already expensive summer

People stand near over water hoses spilling water to provide relief from the summer heat as part of Cologne's climate adaptation measures in Cologne, western Germany on June 25, 2026 during a heatwave in Europe. Ina Fassbender | Afp | Getty ImagesHello, this is Anniek Bao writing to you from Singapore. Welcome to another edition of CNBC's Daily Open.It was a weekend of stalled diplomacy, and Europe wakes up to the bill — a stalemate priced in oil.Iran's foreign minister ruled out any restart of talks with Washington while the U.S. blockade — now 55 redirected ships and counting — stays in place. Israel rejected a Gaza plan Hamas had accepted, refusing to withdraw military until Hamas is fully disarmed. For a continent importing the bulk of its oil and gas, the returning war premium on crude is a tax on households and industry. German inflation figures and U.K. GDP due this week will show just how deeply months of elevated energy costs have seeped into prices — and how much growth they have already taken off the table.What you need to know todayIranian Foreign Minister Abbas Araghchi said Tehran is not in direct negotiations with the U.S. to end the war and reopen the Strait of Horm...