LONDON, ENGLAND - AUGUST 30: A crescent moon hangs over the financial district of Canary Wharf as dawn breaks and the sun rises over the British capital city on August 30, 2016 in London, England. The south east of England has recently seen consistent hot and dry weather with temperatures often exceeding 30 degrees Celsius. The dry weather with good visibility and low wind speeds makes it ideal for hot air balloon flights. (Photo by Chris J Ratcliffe/Getty Images)