Today, some critics argue that progress on-|||-environmental problems ha been difficult. There is-|||-some truth in that.In the last decade.environmental-|||-problems have mounted across the globe.-|||-Yet over the same ten years,society has marshaled its-|||- 26 to address these challenges. The original-|||- 27 was slow.But it is gathering speed,with-|||-technological breakthroug and a growing 28 -|||-that a clean environment is essential for development.-|||-Of course,we should 29 intensify efforts to-|||-tackle poverty and environmental problems.They-|||-endanger our health,security and the 30 benefits-|||-that come to us from nature.-|||-But we should also remember our real-|||-accomplishmerts. The priv sector is playing an-|||- 31 constructive role. This is an acknowledg ment-|||-that preserving the environment is both a good-|||-business and a moral obligation.Companie such as-|||-Royal Dutch Shell,Dupont and BP Amoco are working-|||-to reduce their negative impact on climate change and-|||-increase the options for cleaner energy.The Bill and-|||-Melinda Gates Foundation has helped to 32 the-|||-global union for improved nutrition(营养),a new public-|||-and private partnership that seeks to fortify(增强)food-|||-in an 33 way to improve the health,cognitive (认-|||-知的)development and productivity of people in poor