In South Asia, there is robust evidence of economic impacts of climate change , for example in the Sundarbans  observations show local livelihoods are rapidly becoming unproductive  ; conditions that are exacerbated by climate change impacts . Cyclone and storm surges induced by climate change force saline water into agricultural lands along the coast, which damages crops not only in the year the cyclone hits, but for several years afterwards . They showed in Shyamnagar Upazilla in Satkhira district the proportion of salinity-free farmland has gone down over the past 20 years, from more than 60% to nil . Vietnam has also experienced effects of flooding and salinisation in the Mekong delta, coupled with rapid social development. Intensified floods and droughts have dramatically resulted in loss of livelihoods in agriculture and fisheries in some areas of the basin . In Vietnam, the expected salinisation increases livelihood shifts into areas that are riskier, such as shrimp farming. Furthermore, the Vietnamese Mekong Delta is characterised by strong migration processes towards cities, particularly Ho Chi Min, meaning that abrupt livelihood shifts are already happening. There are emerging examples of Indigenous Peoples affected by climate change in indigenous farming mountain communities of the Nepal Himalaya. . The Philippines has experienced extreme events, such as Typhoon Haiyan in 2013, which left more than 7353 people reported dead or missing, damaged or swept away more than 1.1 million houses and injured more than 27,000 people . More than 4 million were displaced. The cost of damages has been estimated at USD 864 million with USD 435 million for infrastructure and USD 440 million for agriculture in affected regions .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report