Economist: Lift-off Research into the possibility of engineering a better climate is progressing at an impressive rate–and meeting strong opposition AS A way of saying you’ve arrived, being the subject of some carefully contrived paragraphs in the proceedings of a United Nations conference is not as dramatic as playing Wembley or holding a million-man march. But for geoengineering, those paragraphs from the recent conference of the parties to the Convention on Biological Diversity (CBD) in Nagoya, Japan,…