Good job bringing this to light. People won't realise how huge the problem is and municipalities are woefully ill equipped to...
Agreed; mining can never be sustainable, but then how do you get the metals to make all the things you need in the course of...
Very good piece.
PIGS MAY may now rule the heart's of men. Dr David White, an immunologist and lecturer in clinical surgery at Cambridge University in UK, has discovered a way of transferring human genes to pigs, to breed hearts on demand.
A breakthrough has come in isolating and engineering the gene responsible for producing species-specific protein regulators, known as RCAs, to counter enzymes that destroy foreign tissue. These RCAs successfully counter complements of the same species and if a pig's heart is transplanted in a human, in normal circumstances the pig's RCA would be unable to counter the patient's complements.
White and John Wallwork, a surgeon at Papworth Hospital in UK, have already engineered a human RCA-producing mouse and intend to use the same technique by genetically altering a fertilised pig ovum and implanting it in a sow.
Once a transgenic piglet is produced, scientists hope to start a breeding colony which could produce human- compatible hearts.