King Charles Meets Aberfan Survivors After 60 Years

The waste had been on the mountain for years, with water springs under it. After three weeks of heavy rain, it became unstable. Reports say workers saw it sinking that morning, but they had no phone to warn anyone. Later, an official inquiry blamed the National Coal Board, the state company that ran the mines. However, nobody was punished.

Prime Minister Andy Burnham visited on Monday and said sorry for how the state treated the community. Queen Elizabeth II waited eight days before visiting, and people say this was her biggest regret. Today, Wales still has 2,589 old coal tips, or piles of coal waste. Heavier rain from climate change makes people fear more coal tips could slide.