22:00Biggest Russian bombardment on Ukraine yetUN: COP 26 pledges were not enoughBBC Radio 4 Duration: 45 minutes Thu 27th Oct 2022, 22:00 on BBC Radio 4 LWAvailable for over a yearListen nowIn-depth reporting, intelligent analysis and breaking news from a global perspectiveGenresNewsBrandBiggest Russian bombardment on Ukraine yet Source: BBC Online