In the world's 'most ambitious conservation project'
                                
                                
                                    (Newser) -
                                    New Zealand could soon be the envy of New York. The country has announced a "world-first" project to exterminate all non-native pests, including possums, stoats, feral cats, and rats by 2050, reports the  Guardian . Why? Well, the pests, which the government says cost $2.3 billion per year, also...