Defra's overarching aim is sustainable development, which is defined as "development which enables all people throughout the world to satisfy their basic needs and enjoy a better quality of life without compromising the quality of life of future generations". The Secretary of State wrote in a letter to the Prime Minister that he saw Defra's mission as enabling a move toward what the
World Wide Fund for Nature (WWF) has called "one planet living". Under this overarching aim, Defra has five strategic priorities: •
Climate change and energy. •
Sustainable consumption and production, including responsibility for the
National Waste Strategy. • Protecting the countryside and natural resource protection. • Sustainable
rural communities. • A sustainable farming and food sector including animal health and welfare. Defra aims to
procure a significant proportion of the goods and services it requires from
small and medium-sized enterprises (SMEs) in line with government policy on the SME agenda, and has also encouraged its major contractors to engage with SMEs. Defra's headquarters are at 2,
Marsham Street, London. It is also located at Nobel House, 17,
Smith Square, London. ==See also==