One of the most
toxic plants
in the
world, the deadly nightshade (Atropa belladonna) is
filled with tropane alkaloids, which can kill an adult
in large enough doses.
Surface mining has also become a dominant driver of land - use change and water pollution
in certain regions of the
world, where mountaintop removal, coal and tar sands exploitation, and other open pit mining methods strip land surfaces of forests and topsoils, produce vast quantities of
toxic sludge and solid waste, and often
fill valleys, rivers, and streams with the resulting waste and debris [81].