An anticipated conference marking the launch of London Climate Week has been cancelled due to the extreme heat currently gripping the UK. The event, scheduled for June 24th, fell victim to conditions deemed unsafe for attendees. This cancellation underscores the immediate and impactful realities of climate change. The decision highlights the growing challenge of holding outdoor or even indoor events during increasingly frequent and intense heatwaves. Organizers prioritized public safety in the face of record-breaking temperatures. This incident serves as a stark reminder of the urgent need for climate action and adaptation strategies. It also raises questions about the feasibility of continuing planned events during the ongoing heatwave.