An editorial from
Scripps Howard News ServiceCattail, the cylindrical-headed reed that grows in marshes, is being tested as an agent for cleaning up acidic coal mine drainage.
Many mining companies are creating terraced wetlands at mine entrances and planting them with cattails. The plants apparently suck out much of the sulphuric acid and iron with which mine runoff is laden.
It just goes to prove that sometimes simple and inexpensive solutions to problems are right under the noses of government and industry.