BURYING crop waste deep in the ocean could be an effective way to rein in global warming.
The stalks and leaves left in fields across the world each year after harvesting contain a whopping 2 billion tonnes of carbon. Untouched, they decay and release carbon dioxide.
One solution could be to drop the waste into the deep ocean. Up to 30 per cent of the leaves and stalks left in fields after harvesting can be removed without damaging soil fertility, say in Seattle and .…
