Incredible poor title. OP please add a sentence or two explaining the article.

I’ll start of doing that so other people don’t need to blindly click on a link that could be anything.

It’s about a welsh coal mine that got closed (not sure if because of environmental reasons or because of less demand) and then after rains turned into a toxic lake.

Article is questioning if the toxic lake and coal imports are any improvement environmentally compared to extracting coal locally.

I think it’s not asking the right questions. So there is a toxic lake now and maybe it’s worse than a coal mine, but that shouldn’t lead to the conclusion that the coal mine was maybe less bad. Instead it should come to the conclusion that companies need to be held responsible and can’t just abandon sites like that. Maybe they need to fill in some land or I don’t know, but their mess is their responsibility in my opinion.