Corals, maths and satellites
a canadian researcher has discovered answer to one of the most crucial environmental challenges facing the world: how to save coral reefs. Ellsworth LeDrew, a geography professor at the University of Waterloo in Ontario, has devised a mathematical formula that will automatically scan satellite images to uncover changes in coral reefs.
In recent years as much as 10 per cent of the world's coral reefs have been destroyed or badly damaged because of pollution, over-fishing and El Ni