An exploration of unique climate challenges in South Asia and innovative resilience strategies that combine traditional knowledge with modern science.
by Varna Sri Raman
This presentation explores climate science through a South Asian lens, examining regional vulnerabilities, adaptation strategies, and implementation frameworks to build resilience in climate-vulnerable communities.
Climate change requires global cooperation while recognizing unequal impacts, with South Asia facing disproportionate vulnerability despite minimal historical emissions.
Climate action requires two complementary approaches: mitigation tackles the causes by reducing emissions, while adaptation addresses the effects by building resilience to climate impacts.
Climate change is a scientifically established phenomenon with overwhelming expert consensus, supported by measurable evidence, with specific impacts attributable to human activity, and projected to worsen without intervention.
The greenhouse effect is a natural process where atmospheric gases trap heat, warming Earth's surface. While essential for life, human activities have intensified this effect, causing climate change.
Carbon dioxide (76%) dominates greenhouse gas contributions to warming, followed by methane (16%), nitrous oxide (6%), and F-gases (2%). These gases originate from various human activities including fossil fuel use, agriculture, and industry.
Earth's temperature has risen approximately 1.1°C since pre-industrial times, with warming accelerating and disproportionately affecting land areas and regions like South Asia.
Weather refers to short-term atmospheric conditions, while climate describes long-term weather patterns. Understanding this distinction helps explain why isolated weather events don't contradict climate change trends.
South Asia faces disproportionate climate vulnerability due to its unique geography, large population, agricultural dependency, and governance challenges—despite contributing minimally to global emissions.
South Asia faces three major geographic threats: melting Himalayan glaciers threatening water security, vulnerable river deltas experiencing increased flooding, and extensive coastlines exposed to rising sea levels and extreme weather events.
Bangladesh faces severe climate impacts with 80% of its land at low elevation and 38 million people at risk of displacement by 2050, despite minimal carbon emissions. Communities are implementing adaptive strategies, but require global support.
India faces significant agricultural challenges due to increasingly unpredictable monsoons, with rain-fed farming most vulnerable. Climate projections indicate substantial productivity declines that threaten food security for millions.
Pakistan faces severe climate challenges with catastrophic flooding and critical water scarcity occurring simultaneously. The country's dependence on vulnerable glacial water sources further complicates its climate adaptation efforts.
Nepal's mountain regions face triple threats from accelerating glacier retreat, upward-shifting ecosystems, and vulnerable highland communities with limited adaptation resources.
Sri Lanka faces triple climate threats: accelerating coastal erosion, increasingly unpredictable rainfall patterns, and significant biodiversity impacts, particularly affecting its UNESCO sites and coral reefs.
South Asia faces severe economic consequences from climate change, with projected GDP losses of 9% by 2100 and significant impacts across key sectors, particularly agriculture and tourism.
Poverty amplifies climate vulnerability in South Asia, where 500+ million poor people face severe impacts despite minimal contributions to emissions. Limited resources, hazardous living conditions, and dependence on climate-sensitive livelihoods create a cycle of vulnerability.
Women in South Asia face heightened climate vulnerability due to unequal rights, resource responsibilities, and health risks, yet their leadership remains crucial for effective climate adaptation.
South Asian megacities face severe climate vulnerabilities including extreme heat, flooding, water scarcity, and air pollution, with urban slum dwellers at highest risk.




Climate change poses severe health threats to South Asia through heat stress, disease spread, water quality issues, and food insecurity, with health systems largely unprepared for these growing challenges.
South Asia faces severe water insecurity with limited renewable resources serving a quarter of the global population. Climate change and human activities are worsening these challenges across major river basins.
Climate change threatens South Asian food security through heat stress, unpredictable rainfall, increased pest pressure, and water scarcity, requiring transformative solutions to meet growing food demands.
Smallholder farmers in South Asia require diverse adaptation strategies including crop diversification, improved water management, soil conservation practices, and access to climate information services to build resilience against climate change.
Indigenous communities have developed sophisticated environmental adaptations through centuries of observation and practice, offering valuable climate resilience strategies that complement modern scientific approaches.
Community-led initiatives in coastal Bangladesh combine traditional knowledge with modern approaches to address flooding and salinization, resulting in increased resilience for 40,000+ households and reduced storm damage.
A comprehensive climate-adaptive approach in drought-prone Maharashtra led to significant water conservation, increased agricultural productivity, and improved livelihoods across 53 villages, creating a scalable model for climate resilience.
A community-based early warning system in Pakistan's mountain regions combines technology with local knowledge to provide critical advance notice of flooding, saving lives and reducing property damage.
South Asian cities are implementing innovative climate resilience strategies through ecosystem-based approaches, community engagement, and multi-functional infrastructure to address flooding, heat, and water security challenges.
Early Warning Systems offer exceptional cost-effectiveness in climate adaptation with 1:10 benefit-cost ratios. They follow a four-step process from monitoring to response, significantly reducing cyclone fatalities in Bangladesh while gaps remain for other hazards.
Climate-resilient infrastructure combines forward-looking design, flexible systems, redundant networks, and natural elements to withstand changing climate conditions and protect critical services.
Nature-based Solutions leverage ecosystems to address climate challenges while providing multiple benefits for communities and biodiversity. These approaches offer cost-effective alternatives to conventional infrastructure across various applications from coastal protection to urban cooling.
Mangroves serve as critical natural infrastructure for coastal communities, providing significant protection from storms and waves while delivering substantial ecological and economic co-benefits. Despite historical losses, restoration efforts are demonstrating impressive returns across South Asia.
Traditional and modern water harvesting methods provide cost-effective drought resilience across South Asia, supporting groundwater recharge and agricultural productivity in rain-fed farming regions.
Climate-Smart Agriculture delivers a triple benefit: boosting farm productivity, building climate resilience, and reducing emissions where feasible - all supported by enabling policies and information services.
Urban areas in South Asia are implementing four key heat adaptation strategies: reflective surfaces, increased vegetation, cooling centers, and emergency response systems to combat rising temperatures and protect public health.
South Asian building codes face challenges with outdated standards and limited enforcement, while emerging resilient design features and implementation approaches show promise for climate adaptation in construction.
A comprehensive approach to energy resilience includes vulnerability assessment, supply diversification, infrastructure strengthening, and enhanced system flexibility—presenting an opportunity for South Asia to build climate-ready energy systems.
South Asia faces a 90% shortfall in climate adaptation funding, requiring diverse financial mechanisms across public, international, private, and community sectors to close this critical gap.
Insurance mechanisms designed for climate resilience include weather-based, yield-based, regional risk pools, and microinsurance options that provide financial protection while encouraging risk reduction.
Microfinance institutions across South Asia are enhancing climate resilience through specialized loans, risk management services, community-scale financing, and knowledge support, serving over 200 million clients.
South Asian countries have established policy frameworks for climate adaptation through legal foundations, policy instruments, implementation mechanisms, and mainstreaming efforts, though implementation capacity varies across the region.
South Asian nations have established climate adaptation frameworks with country-specific approaches. While priorities commonly include water, agriculture, and disaster management, implementation faces challenges across institutional, financial, and capacity dimensions.
Mainstreaming climate considerations into development planning through a four-step process: assessing risks, identifying opportunities, modifying plans, and measuring resilience. This approach is being implemented across South Asia with innovative tracking systems.
Multiple climate funds totaling over $50 billion exist with varying access requirements. South Asian countries have secured $4.2 billion, though this falls short of adaptation needs. Recent climate summits have emphasized adaptation and loss damage funding.
Climate finance accessibility requires institutional readiness, strong proposal development, innovative financing models, and direct access mechanisms, with a growing trend toward funding local government initiatives.
Climate justice recognizes that climate change impacts are unequally distributed, with vulnerable populations bearing the greatest burden despite contributing least to the problem. Equitable adaptation requires recognizing differential vulnerability, ensuring inclusive decision-making, and allocating resources based on need.
South Asia's 600+ million youth are leading climate resilience efforts through community initiatives, governance participation, entrepreneurship, and education while facing the greatest climate impacts.




Effective climate action requires strategic collaboration across sectors, borders, and stakeholder groups, with structured governance and equitable benefit-sharing.
A systematic approach to tracking, analyzing, and improving climate adaptation initiatives through defined metrics, measurement, analysis, and continuous adjustment.
Effective climate science communication requires localizing global issues, simplifying complex concepts, empowering communities with solutions, and diversifying outreach methods while respecting cultural contexts.
Climate misinformation in South Asia requires a multi-faceted approach: identifying false narratives, preparing audiences through education, providing accurate corrections, and building trust through transparent communication.
Digital technologies are enhancing climate resilience across South Asia through mobile-based advisory services, participatory risk mapping, and citizen science platforms, while challenges of digital access and appropriateness remain.
Scenario planning prepares communities for climate uncertainty by developing multiple potential futures rather than predicting a single outcome, enabling more robust and flexible adaptation strategies.
Addressing the emotional toll of climate work requires acknowledging climate emotions, building support networks, finding meaning in action, and implementing trauma-informed approaches.
Community-based climate leadership is developed through identifying local champions, building technical and leadership capacity, creating collaborative networks, and providing access to essential resources.
Local innovators across South Asia are creating practical climate adaptation solutions by combining traditional knowledge with new approaches, demonstrating that community-led initiatives can transform vulnerable areas into models of resilience.
Climate resilience in South Asia requires integrating diverse knowledge systems, ensuring social equity, building systemic approaches, and fostering cross-sector collaboration while centering frontline communities.
A curated collection of South Asian climate resilience resources including knowledge platforms, training programs, and practical implementation toolkits for continued learning and capacity building.
This interactive session invites participants to share climate adaptation experiences, apply concepts to local contexts, explore partnership opportunities, and commit to concrete resilience actions in South Asia.