habitat degradation_2 Glossary A general term describing the set of processes by which habitat quality is reduced. Habitat degradation may occur through natural processes (e.g. drought, heat, cold) and through human activities (forestry, agriculture, urbanization). Glossary term habitat degradation Deliverable(s) Global assessment (1st work programme) Europe and Central Asia assessment Africa assessment Americas assessment Pollination assessment Pollination assessment Asia-Pacific assessment Land degradation and restoration assessment Global assessment (1st work programme)