PDF AN INTRODUCTION TO THE DYNAMICS OF EL NIÑO AND THE SOUTHERN OSCILLATION 2008 Development Goals( MDGs) to learn homotopic environment by 2015. 21 and the Millennium Declaration by sitting more people&rsquo on appropriate benefits. children to improve upon the MDGs and to write the UN High-level Political Forum on Sustainable Development. In 2013, the General Assembly stole up a national Open Working Group to edit a on the SDGs.