BBCNEWS Weather World December 27, 2021 13:41:00
Drainage system. we're putting down concrete, tarmac, all those new houses, all those roofs. that surface water is going to increase anything between eight and 18% per small development. and you've got to think about where it's going to go. the drains are already at well over capacity and just can't deal with it. joining me now here at london's southwark station is lilli matson from tfl. lilli, how concerned is tfl about the forecast of more frequent extreme rainfall in a warming world? we're very aware that london's climate is changing. we're seeing warmer weather winters, drier, hottersummer...