by Marie-Morgane LE MOEL Agence France Presse Paris, France (AFP) — The new chief executive of Mars, maker of M&M’s sweets, chewing gum and pet food, says companies have a “moral” duty to reduce their environmental footprint as the world battles climate change. Poul Weihrauch, a Dane who took the reins of the US-based group in September, acknowledges that the food industry has a big impact on the environment, with its plastic wrappers and its […]