We thought it might be helpful to highlight some of the responses here In this section you can find out how our policies are delivered and by whom, including our key partners and organisations we work closely with As we build a low carbon, resource efficient economy, Defra helps people to adapt to changes, deals with environmental risks and makes the most of the opportunity we have to secure a sustainable society and a healthy environment The overarching challenge for Defra is to secure a healthy environment in which we and future generations can prosper Defra's network of delivery organisations implements our policies