Integrating evidence of land use and land cover change for land management policy formulation along the Kenya-Tanzania borderlands

•Summarise evidence sources of past-present-future socio-ecological change.•Review scope focuses on the Kenya-Tanzania border from mid-Holocene to present.•Strengthened integration and co-production is needed at the science-policy interface.•Multifunctional, transparent, and reliable LULCC knowledge support decision-making.