The document discusses progress towards achieving the United Nations Millennium Development Goals (MDGs) for environmental sustainability and improving lives. Specifically, it outlines targets to incorporate sustainability principles into laws and projects by 2015, reduce biodiversity loss by 2010, provide access to safe drinking water and basic sanitation to more people by 2015, and improve the lives of 100 million slum dwellers by 2020. It notes that as of 2010, 89% of people had access to safe drinking water and more than 200 million slum residents' lives had improved. It encourages involvement through supporting hashtags and events.