The document discusses sustainable development initiatives in Madrid, Spain. It describes programs to improve transportation through expanded metro access, high-occupancy vehicle lanes, and electric bike sharing to reduce air pollution and emissions. It also discusses efforts to increase recycling rates through improved household separation of waste and public awareness campaigns, as over 30% of Madrid's garbage was previously not recycled. While progress has been made, the document suggests landfill capacity must further increase and waste treatment be improved to properly process organic and non-organic materials.