RT Report T1 Nature-based Solutions for Climate Change Mitigation A1 United Nations Environment Programme, A1 International Union for Conservation of Nature, A2 Miles, Lera A2 Agra, Raquel A2 Sengupta, Sandeep A2 Vidal, Adriana A2 Dickson, Barney A2 Mills, Juliet A2 Lahud, Julieta A2 Pohnke, Carina K1 climate change K1 nature conservation K1 marine ecosystem K1 nature-based solution K1 climate change mitigation K1 safeguard measure SN 978-92-807-3897-1 YR 2021 FD 2021-11 LK https://wedocs.unep.org/handle/20.500.11822/37318 UL https://wedocs.unep.org/handle/20.500.11822/37318 NO Despite growing political support for the use of nature-based solutions in climate change mitigation, a number of concerns have been raised. These include: uncertainties about the scale of the contribution, especially given challenges with implementation and financing; doubts about whether the necessary safeguards will be put in place; and worries about the use of offsets by the private sector.This report will assess the current state of knowledge on the size of the contribution that nature-based solutions can make and the types of action they will involve. It will discuss the importance of social and environmental safeguards, how nature-based solutions can be financed and the role of offsets. Most importantly, it will consider the potential of nature-based solutions for mitigation to also contribute to climate adaptation and other pressing challenges. DS UN Environment Document Repository RD Sep 22, 2026