BBC: A group of scientists has appealed against a road planned in Tanzania’s Serengeti National Park, saying it would cause an environmental disaster. Writing in the journal Nature, the 27 scientists said the road would curtail wildebeest migration, with knock-on effects on the area’s ecosystem. The migration of the wildebeest was the “largest remaining migratory system on Earth”, they said. The scientists proposed an alternative road running to the south of the …