From David Horne, Queen Mary University of London
Roelof Schuiling’s proposals to build bridges seem to be as full of holes as the limestone he plans to expand by converting it to gypsum (20 November, p 38).
To say that there would be no direct effect on flora and fauna, because the rock transformation is separated from the biosphere by unchanged limestone, is more than a little misleading. Raising whole coral atoll ecosystems above sea level may be, arguably, an “indirect” effect, but would be an environmentally disastrous one nevertheless.
London, UK
