Green and Blue infrastructure and why it matters What do we mean by ‘Green and Blue infrastructure’, and what is the significance of these spaces for people and ecology. Greening and biodiversity Learn about urban greening in Waltham Forest, Biodiversity Net Gain (BNG) and Urban Greening Factor (UGF). Rivers, waterways and flood risk mitigation Waltham Forest has an extensive network of rivers and waterways, and many parts of the borough are affected by flood risk. Local Nature Recovery Strategy (LNRS) Learn about London’s forthcoming Local Nature Recovery Strategy (LNRS). Green and Blue infrastructure planning guidance Planning guidance and Supplementary Planning Documents about green and blue spaces. Protecting and enhancing Epping Forest Find out what we are doing to protect and enhance Epping Forest.