Scotsman: POETS and scientists alike have sung its praises. The vast swathe of peatland that covers much of Lewis is held in high regard for its environmental qualities and the rich wildlife it sustains. Scotland’s vast expanses of peat bogs are regarded as our equivalent of the rainforests, and 17 per cent of the world’s "blanket bog" is in this country. In all, Scottish peatlands cover some 1.9 million hectares and contain about two billion tons of carbon – roughly four times the …