There are now more than 100 million people overall displaced, around 75% of whom are hosted by low or middle-income countries and living in protracted circumstances. Host countries are struggling to meet the needs of internally displaced people and refugees, despite the efforts and support of UN agencies and humanitarian actors. This Policy Brief, produced under the auspices of UNEP NDC Action project - which supports 10 countries, including Bangladesh, Colombia, Jordan and Uganda - highlights the needs and opportunities to strengthen the strategic and operational bridges between the humanitarian, development, climate change and environment fields.