What is the 'Omega Block' causing Europe's intense heatwave?

A severe heatwave gripping Western Europe, causing over 50 deaths in France, is fueled by an 'omega block' weather pattern. This phenomenon traps warm, high-pressure air between cooler systems, leading to prolonged heat and dry conditions. While the link between climate change and omega block frequency is debated, scientists confirm global warming intensifies heatwaves, making current extreme temperatures significantly more likely.