EDITOR’S NOTE: Call to Earth is a NCS editorial sequence dedicated to reporting on the environmental challenges dealing with our planet, along with the options. Rolex’s Perpetual Planet Initiative has partnered with NCS to drive consciousness and training round key sustainability points and to encourage constructive motion.
The Netherlands has spent a long time constructing and perfecting certainly one of the most subtle water-defense programs in the world. With one quarter of the nation beneath sea stage, water stays an ever-present risk, and defending in opposition to it — from the rising ranges of the North Sea to overflowing rivers — is central to the nation’s survival.
But as the fee of sea stage rise continues to improve and excessive climate turns into extra frequent, specialists say the programs that saved the nation secure for many years will battle to hold tempo with out important upgrades.
“We live in a bathtub and the bathtub will fill up,” mentioned Co Verdaas, commissioner for the nationwide water protection program, the Delta Program.
“And because we fully trusted centuries of technical water management, we forgot how vulnerable we are,” he informed NCS. “We are literally also accessing the limits of what we can do with technical management.”
A report revealed in March 2026, which analyzed 385 peer-reviewed research, discovered that present international coastal sea stage has been underestimated, and is on common around 1 foot higher than currently assumed, with some locations — corresponding to Southeast Asia and components of the Pacific — reaching up to 3 toes increased.
The Netherlands’ in depth system of storm-surge limitations, often called the Delta Works, has protected it for many years.
Spanning roughly 1,000 kilometers (621 miles), the Delta Works consists of greater than a dozen main elements, together with dams, dikes, levees, sluices and pumps. Completed in 1997, it’s constructed to hold back the sea and is extensively seen as a worldwide mannequin for a way fashionable infrastructure can shield coastal areas.
Construction started after the devastating North Sea Flood of 1953, which left greater than 2,000 folks lifeless alongside the coasts of the Netherlands, Belgium and the United Kingdom. The catastrophe, the worst in the Netherlands since the Middle Ages, led to the growth of a complete system geared toward stopping future flooding.
“If you look a bit back in our history, we had this strong tendency to think that we could control water,” mentioned Joep Verhagen, lead professional on water and concrete resilience points at the Global Center on Adaptation, in the Netherlands. “Controlling nature gets harder and harder with climate change. So from controlling water, we moved towards living with water, accepting that we could not always control nature.”
While the Netherlands’ infrastructure stays amongst the finest in the world, the fast tempo of local weather change means components want updating, mentioned Harold van Waveren, water security adviser at Rijkswaterstaat, the nationwide water administration company.
“Because if you replace some infrastructure, the idea is that it will work for another 50 or 100 years,” he mentioned.
“We feel so safe because it’s going well. It has been going well — until now,” van Waveren added.
Delta Works combines over 20,000 kilometers of dikes and storm-surge limitations with hundreds of pumping stations.
“That’s our main basis,” van Waveren mentioned, to guarantee “this country exists.”
The pumps differ in measurement, with the largest presently pumping about 250 cubic meters (8,829 cubic toes) per second, he mentioned. Yet, pumping capability may have to improve dramatically. “One of the options could be to construct pumping stations at around 2,000, 3,000, 5,000 cubic meters per second (70,629 – 176,573 cubic feet per second), maybe at the end of this century, to stay safe.”
Some Delta Works constructions, corresponding to fastened dams, block the sea. Others — significantly movable storm-surge limitations — stay open beneath regular situations to permit transport and pure ecosystems to operate however can shut throughout excessive storms.
Opened in 1986 and stretching 9 kilometers (5.6 miles), the Oosterscheldekering, the world’s largest storm surge barrier advanced, has 62 movable gates that stay open beneath regular situations to permit the tide to circulation naturally, and shut solely throughout exceptionally excessive water ranges.
Since it was constructed, the barrier has closed roughly 30 occasions — about as soon as per 12 months on common — however beneath excessive local weather eventualities, it’d shut as many as 20 occasions a 12 months, placing elevated mechanical stress on the gates, according to a report by the Royal Netherlands Meteorological Institute (RNMI).
Another main water protection construction, the Maeslant Barrier, in the southwest, was constructed to shield the metropolis of Rotterdam and greater than 1 million folks from flooding. The automated storm surge gate has two movable arms, every 210 meters (689 toes) vast, 22 meters (72 toes) excessive and 15 meters (49 toes) deep, which might sink to the backside of the waterway inside about two hours when the barrier closes.
It was designed to shut roughly as soon as per decade. In 2023, excessive water ranges brought on by Storm Pia triggered an automated closure and authorities warn that if water ranges proceed to rise sharply, the waterway to certainly one of Europe’s largest ports could have to be closed completely.
“Maybe for our safety in the longer term, we have to close it. It’s not an issue now,” Verdaas mentioned, “but with two meters (6.7 feet) of sea level rise, it’ll be at the end of the century. And you can imagine the impact — the Port of Rotterdam is one of the biggest ports in the world.”
Global sea ranges are projected to rise by round 0.3 meters (1 foot) to simply over 1 meter (3.3 toes) by 2100, relying on future greenhouse fuel emissions, in accordance to the Intergovernmental Panel on Climate Change (IPCC). The UN local weather panel notes that whereas most estimates are decrease, a lot increased sea stage rise can’t be dominated out in additional excessive eventualities, doubtlessly approaching 2 meters (6.7 toes) by 2100 beneath very excessive emissions eventualities, although these outcomes are thought-about low-probability, high-impact.
North of Rotterdam, the Afsluitdijk — a 32‑kilometer (20-mile) dam in the northwest — separates the freshwater IJsselmeer lake from the Wadden Sea. It supplies water for agriculture and ingesting whereas defending giant components of the nation from flooding. Rising seas and altering local weather situations are growing strain on the system, prompting upgrades corresponding to new sluices and expanded pumping capability at the dam. Dutch authorities say additional changes, together with further pumping capability or adjustments to water-level administration, could also be wanted round 2040.
The Delta Program undergoes a significant overview each six years, with the newest evaluation due in September. Ensuring adequate funding stays a prime precedence.
Currently, the Netherlands invests about 1% of its gross home product in water protection, however “we need to double our investment,” Verdaas mentioned. In 2026, the Delta Fund will allocate €1.9 billion ($2.2 billion). The complete program value is projected at €38 billion ($43.7 billion) for 2015–2050.
“We are also experimenting,” Verdaas added. Several initiatives now use pure tides and sediment to strengthen the shoreline, by permitting sand, mud, and silt carried by the sea to settle in focused areas. Over time, this pure buildup raises and reinforces the land, serving to shield shorelines whereas lowering the strain on dikes and different laborious infrastructure.
“So it’s not a contradiction between nature-based or technical solution, but let technical innovations work together with the natural system. That’s the way forward, we think,” Verdaas mentioned.
But threats aren’t restricted to the sea. Rivers flowing by way of the nation additionally pose challenges, particularly as melting ice and heavy rainfall improve water ranges. The Netherlands’ two predominant rivers, the Rhine and the Meuse, together with smaller rivers corresponding to the Scheldt, circulation throughout a number of international locations earlier than reaching the Dutch delta, making coordinated administration important. Parts of those rivers lie beneath sea stage, requiring pumps and sluices to actively regulate the circulation.
The Netherlands’ Room for the River program permits floodplains to fill with water when excessive river ranges are excessive, then safely drain when the water recedes. “The floodplains are normally grassland where cows graze. During high water, these places get flooded, cows are evacuated, and when the water recedes, there’s very limited damage,” Verhagen mentioned.
Paradoxically, some areas now additionally face droughts, prompting initiatives to retailer water for agriculture and ingesting.
“Water is the language of climate change, so most of the impacts we feel come through changes in the water cycle. That’s either too much, too little, or not clean enough water,” Verhagen added.
Dutch cities are innovating to construct city water resilience. Rotterdam, as well as to greater than 1,000 pumping stations options inexperienced roofs that retailer water and funky buildings, and public areas corresponding to Water Square that double as water storage throughout heavy rainfall.
“Basically, it is a kind of place that is … like, two meters (6.7 feet) below the street level, where if it’s sunny, people play. They play basketball, they play soccer, they have performances, they have church services. But when it rains very hard, it fills up with water,” Verhagen mentioned. Other international locations have additionally adopted this concept.
Rotterdam can be experimenting with floating infrastructure, creating workplaces, farms and houses resilient to rising sea ranges. “You need to make resilience measures multifunctional,” mentioned Verhagen. The Global Center on Adaptation in Rotterdam, the place he works, is housed in the world’s largest floating workplace, a 3,500-square-meter (37,674 square-foot) timber construction that’s carbon-neutral and cooled utilizing harbor water.
“Our language is full of, ‘we did conquer the water, we did conquer the elements,’ but now we have to cooperate with them in the new chapter. So that’s quite a shift,” Verdaas mentioned.