The problem is the concentration that nature has never experienced before. Alcohol is natural but in concentrations that required distilling is a poison.
Or in Norway it turned out throwing into fjords pieces of stones that are a by-product of quarry is very problematic. It releases into water copper and other metals within years poisoning plants and fish. Through natural weathering it takes thousands of years to release the same amount.
Or in Norway it turned out throwing into fjords pieces of stones that are a by-product of quarry is very problematic. It releases into water copper and other metals within years poisoning plants and fish. Through natural weathering it takes thousands of years to release the same amount.