Nature Positive Cities Efforts to Advance the Transition San Francisco 2025

1 City overviewSan Francisco sits within the California Floristic Provence, which is a biodiverse zone that runs the length of the state of California. The biodiversity in the region is high and varies considerably, encompassing grasslands, chaparral, woodlands, and alpine and coastal forests. The province harbours 3,500 plant species, 61% of which are endemic. 15 Additionally, San Francisco is situated in the Golden Gate Biosphere, which includes urban, multi-use and wildland habitats, and both marine and terrestrial ecosystems. 16 Local biodiversity and the natural environment Natur e and climate change strategies Economical and developmental context KEY STATISTICS 0.95oC rise in mean temperature between 1950-2005 3,500 regional plant species 340 species of breeding birds The main threats to terrestrial and marine biodiversity in the region include: 17 –T ransformation of natural areas for urbanization –Expansion of large-scale agricultural sites –Habitat encr oachment –Intr oduction of invasive alien species –Suppr ession of natural fires –Pollution (stormwater , sewage, industrial, trash) –Fr eshwater diversion and loss of wetlands –Human-induced climate change leading to rising sea levels 1.2 Situational contextSelect the tabs to discover more 13 Nature Positive: Cities’ Efforts to Advance the Transition