New speakers including 'climate comedian' Dr Matt Winning have been added to the lineup of Nature in the City — a Summer Solstice gathering of climate conversations by The Datai Pledge, Bouteco, LORE Group and The Long Run, on Sunday 21 June 2026 at 12th Knot, the rooftop bar at Sea Containers London. Taking place at the start of London Climate Action Week, the event brings together voices from across hospitality, food, farming and conservation.