Reuters: Poor farmers regrow trees on their land in the Sahel for food, animal fodder, fuel and crop protection. Communities threatened by rising seas on the Carteret atoll in Papua New Guinea move permanently to Bougainville, the country's main island. The Netherlands devises coastal and river-flood protection schemes with a planning horizon of two centuries. Scientists collaborate to breed new varieties of drought-tolerant maize for Africa.
What do these efforts have in common, beyond targeting the rising...