REDORBIT: The UN’s climate chief on Thursday urged the air transport industry to continue its strategies in curbing emissions, highlighting that it held quot;critical keysquot; to confronting global warming. The aviation industry produces nearly two percent of the global emissions from human activity which quot;if left unchecked, will have further impacts on climate change,quot; UN climate chief Christiana Figueres told an industry conference on aviation and the environment. Figueres, the executive …