For the third year in a row, toxic blue-green algae blooms that look like pea soup and smell like rotten eggs have covered much of Lough Neagh, the largest lake in the the UK or Ireland. But this summer, the thick green veneer - so widespread it can be seen from space - has been worse than ever, according to locals living near the Northern Ireland landmark. The algae growth - fuelled by industrial, agricultural and sewage pollution, as well as climate change - has ravaged fishing and watersports, and raised fears about drinking water safety. IMAGES AND SOUNDBITES