Across Asia, climate change is increasingly disrupting the water cycle, with rising temperatures, erratic rainfall, prolonged droughts, floods, and rising sea levels threatening water sources that communities have relied on for generations. Rural populations, especially those dependent on agriculture, face immediate impacts: crop failures, dried rivers, and unsafe drinking water, which in turn affect food security, health, and income. Water scarcity also exacerbates inequalities, with women and girls bearing the primary responsibility for collecting water, exposing them to health risks and limiting education and economic opportunities.
Governments across Asia are prioritizing water in National Adaptation Plans and Nationally Determined Contributions, investing in climate-resilient water systems supported by the Green Climate Fund and UNDP. These initiatives include rainwater harvesting, modernized irrigation, and watershed protection, helping communities adapt to climate change while sustaining livelihoods.
In Bangladesh, rising sea levels and salinity intrusion threaten freshwater access along the southwest coast. With UNDP and Green Climate Fund support, nearly one million people, over half women, have benefited from climate-resilient drinking water systems, including over 13,400 rainwater harvesting units and 25 solar-powered ultra-filtration pond systems. Women play leading roles in managing these systems, with water management committees composed of 85 percent women ensuring long-term sustainability and community resilience.
In Timor-Leste, rural farmers in Suco Fatulia gained access to a rehabilitated 450-meter irrigation channel, enabling controlled irrigation across farmland. This infrastructure, combined with nature-based solutions like tree planting, has stabilized soils, improved groundwater recharge, and expanded agricultural opportunities beyond the rainy season. Women benefit from reduced labor in water collection, while families diversify crops and generate new income through agroforestry initiatives.
In Bhutan, disrupted monsoon cycles previously left farmland fallow and forced families to abandon agricultural livelihoods. With support from UNDP and the Green Climate Fund, 36 irrigation schemes and a solar-powered lift system now provide water to 6,366 hectares, benefiting over 31,000 farmers. Sustainable land management practices protect an additional 5,000 hectares from erosion. Women actively participate in water user associations, coordinating irrigation and reducing their physical burden, while improved water access revitalizes farming and secures community livelihoods.
The experiences of Bangladesh, Timor-Leste, and Bhutan demonstrate that water security is central to climate resilience. Investments in climate-smart irrigation, rainwater harvesting, and watershed protection stabilize harvests, safeguard drinking water, and reduce the burden on women and girls. Reliable water access not only protects livelihoods but also enables rural communities to thrive, highlighting its critical role in helping Asia adapt to intensifying climate impacts.
