This document introduces the UNDP-UNEP Poverty and Environment Initiative (PEI), which aims to integrate considerations of poverty, economic development, and environmental sustainability into national development plans. It outlines the links between these issues, such as land degradation reducing food security. PEI works in various countries to conduct economic analyses of these links, incorporate poverty-environment indicators into planning, integrate sustainability into budgeting, and raise awareness through guidance and training. Examples from Tajikistan, Kyrgyzstan, and Armenia are provided.