through protected ecosystems and biodiverse environments, thereby enhancing economic returns. At the same time, the conservation and integrity of ecological zones, ecosystems, can play a huge role in protecting infrastructure (SDG 9). Such as protecting road networks, power lines, and other infrastructure in areas threatened by natural disasters. If biodiversity is destroyed, it negatively affects poor people, because their livelihoods depend heavily on ecosystems, thereby increasing inequality(SDG 10). For urban development (SDG 11), modeling studies of urban temperatures in the coming decades suggest that in urban areas with a 10% reduction in green cover, urban temperatures could rise by 8.2 ° C above current levels under high emissions scenarios. On the other hand, a 10% increase in urban green coverage could limit temperature increases to 1° C. Maintaining biodiversity plays a vital role in helping to mitigate and adapt to climate change. Mangrove forests, for example, account for approximately 1% of carbon sequestration by the world’s forests, but about 14% by the global ocean. Therefore, negative impacts on mangrove habitats can result in very high GHG emissions. The impact of land-based activities such as agriculture, land reclamation and urban development on ecosystems demonstrates the high degree of linkage between SDG 13, SDG 14 and SDG 15, and the importance of the overall management of all three. Organizations US Based Organizations In the US there are over eight thousand tax-exempt organizations working on issues related to UN SDG 15, according to data filed with the Internal Revenue Service –IRS and aggregated by X4Impact. X4Impact, with the support of the Rockefeller Foundation, Ford Foundation, Hewlett Foundation, and Giving Tech Labs, created a free online interactive tool Life on Land and Nature Conservation in the US. References External links UN Sustainable Development Knowledge Platform – SDG 15 “Global Goals” Campaign - SDG 15 SDG-Track.org - SDG 15 UN SDG 15 in the US Sustainable development Sustainable Development Goals United Nations documents