What’s the collective noun for a group of mayors? ‘A magnificence of mayors’, is apparently the answer, well, our ‘magnificent’ Sadiq is hosting a conference next week with ‘mayors from around the world’ for the inaugural Partnership for Healthy Cities Summit. They will be discussing strategies to combat noncommunicable diseases and injuries. Top of Khan’s list is fighting the ‘toxic air’ that causes ‘asthma and stunted lung growth in the young and dementia in the elderly’, and no doubt burnishing his success at getting 160,000 of London’s cars scrapped at a stroke.

Environment Secretary Therese Coffey was at Camley Street Natural Park in north London recently to launch the ‘environmental improvement plan’ for safeguarding England’s rivers. She was quoted as saying, “Actually, I really do give a s**t about water quality,” and that she would “hold the industry to account” and had set “clear expectations” for how much they will be allowed to spill from overflows. But no new money was announced to deliver any of these pledges, nor what punishment would be meted out to water company transgressions.

The annual London to Brighton Mini Run looks set to leave London. Sadiq Khan’s expansion of the ULEZ zone means entrants will be charged £25 as many stay overnight necessitating two charges. Expect many London attractions to leave the capital next year.

At least we’re still tipping cabbies. A survey by payment app Lopay analysed 57,816 fares paid to more than 2,000 taxi and private hire drivers in London found that the average taxi tip is a relatively healthy 10 per cent (or £3.10). However, the study also found that while ‘passengers are most likely to leave a tip in the evening, between 7pm and midnight’ the worst hours for tipping were ‘recorded between midnight and 5am’. Not sure we can put that down to ‘cultural and political frustrations’, or just drunkenness.