London carried out a training exercise to test its ability to cope with 40C heat on Thursday. Named ‘Operation Helios’ after the Greek god of the sun, it explored a scenario where extreme heat hits the capital for five days – one scientists warn could be a reality as early as 2027. It was led by Greater London Authority’s London Resilience Unit and involved more than 80 participants from emergency services to local government, environment agencies and transport companies. It comes after the London Climate Resilience Review published a report in March which recommended that the city test its pr…
