It’s springtime in much of the northern hemisphere, although spring snowstorms are still possible. When that happens, salt trucks and ploughs help make roads safe. But road salt can be bad for the environment, and can rust cars, bicycles and other metal. New research shows that salt use can be safely — and substantially — cut in certain circumstances.
It weighs six tons, is 10 metres long, and is proving its usefulness in protecting the new government quarter, floating tunnels along Norway’s west coast and numerous other precious contraptions on a daily basis.