El Nino does not have to be a disaster if we learn to treat water as a valuable commodity

The World Meteorological Organization has issued its most unequivocal El Nino forecast in 76 years: near 100% certainty that the event will persist through early 2027, with subsurface Pacific temperatures reaching upwards of 8°C above normal. UN Secretary-General António Guterres notes that climate patterns are "supersizing before our eyes."

While Dartmouth researchers estimated that past cycles like the 1997 El Nino impacted global growth by 5.7 trillion dollars over five years, this unprecedented predictability gives humanity an extraordinary opportunity.

By acting early, world economies can protect an estimated 4 trillion dollars in potential growth through 2030, keeping local businesses resilient, stabilizing food prices, and unlocking vital new investments across vulnerable regions.

The key to turning this challenge into an opportunity lies in how we manage water. El Niño brings intense dry spells to parts of Southern Africa, India, and Central America while delivering abundant rainfall to East Africa and South America.

During Kenya’s 2023–24 rainy season, heavy deluges demonstrated the immense volume of water moving across the landscape. The ultimate goal now is scaling up systems to capture these massive seasonal rains so they nourish communities during the dry months that follow.

This presents a transformative opportunity for modern infrastructure design.

When extreme rains arrive, traditional channels work quickly to prevent immediate flooding near crops and roads. By expanding these networks into integrated storage systems such as retention basins and dams, and managed aquifer recharge wells, we can harvest these rainstorms and store them safely underground for year-round agricultural use.

In both dense urban centers and rural villages, proactive flood management bridges the gap between public safety and long-term water security. In town areas, replacing non-porous concrete with permeable pavements, clearing storm drains before rains begin, and retrofitting public spaces into temporary flood-holding plazas prevent costly property damage.

In rural agricultural zones, contour bunding, tree planting on sloped land, and vegetated buffer strips slow down rushing water, preventing catastrophic soil erosion while directing clean runoff into storage ponds.

Simple local actions such as clearing drainage channels, building elevated seed banks and mapping neighborhood evacuation points ensure that communities protect lives and assets while storing the water that will sustain them through the dry season.

Innovative solutions are already proving successful across the globe, offering a clear roadmap for success: Kenya & Ethiopia: Ingenious earthworks, sand dams, and percolation basins capture surface runoff and turn seasonal flash floods into long-term soil moisture.

In Kisumu County, IWMI established off-stream storage and solar-powered irrigation on a 76-hectare farm, smoothly managing heavy rains while empowering farmers to harvest crops year-round.

Bangladesh: Automated cash transfers triggered by river-level forecasts empower families to protect livestock and buy essential supplies well before waters rise.

Peru: Parametric insurance frameworks link automatically to Pacific sea-surface temperature data, rapidly releasing funds to strengthen coastal defenses and support farming communities ahead of dry spells.

Panama: The Canal Authority implemented proactive water-saving protocols and watershed reforestation, preserving vital water levels while keeping global maritime trade moving smoothly.

The economic return on these forward-thinking measures is remarkable: every single dollar invested in anticipatory action yields up to seven dollars in saved assets and community benefits.

Organizations like the FAO and WFP are leading the way with a 202 dollars million initiative to support 8.8 million people across 22 high-risk countries with drought-resistant seeds, direct early support and water storage infrastructure.

Integrating Water Storage into Infrastructure: Flood-prone regions can naturally incorporate groundwater recharge facilities, such as check dams, injection wells and percolation ponds into standard public works and urban planning.

Expanding Early Action Programs: Expanding funding for proactive appeals and expanding parametric insurance models helps nations prepare seamlessly for shifting climate cycles.

Encouraging Adaptation Investments: Public development banks and private investors can partner to channel capital directly into water infrastructure, creating sustainable, long-term returns for growing economies.

Cooperative Water Management: Shared water governance ensures that local agriculture, municipal systems, and regional industries all thrive together, securing safe drinking water and robust local food production.

El Nino is no longer an unexpected event; modern forecasting gives us months of clear lead time. Equipped with advanced science and proven solutions, we have a unique chance to catch the deluge, store it in the earth, and turn a recurring climate pattern into a dependable source of prosperity.

Together, we can turn foresight into action. By backing local water-harvesting projects, championing early-action finance, private sector investments and supporting sustainable infrastructure in our communities, we can ensure every drop of rainwater becomes a life-giving asset for generations to come.

Chris Diaz