The BBC recently published an essay by David Shukman on most (if not everything) you need to know about the deep sea mining problem. The article covers history, current state and problems evolving from mining on the ocean floor. The author uses clear critical thinking without becoming too opinionated. Although detailed, it is both an enticing piece to read and it will surely drag you into discussing the effects and possibilities of green/ sustainable living.
A must read for anyone, if you ask me
Read it here