In south-west Poland, communities were rallying on Tuesday morning to combat severe flooding threatening the town of Nysa. Located about 90 kilometres south of Wrocław, Nysa is at risk as the Nysa Kłodzka river nears the brink of breaching a crucial dyke protecting the town centre. Throughout the night, local residents joined forces with the army and fire brigade to fortify the weakened dyke with sandbags. “There were about 2,000 people on the dyke: women, men, children and senior citizens,” Mayor Kordian Kolbiarz told radio station Rmf.fm. People had formed a human chain to transport the sand…