Delta Programme review urges Netherlands to shift course on climate risk
The Dutch Delta Commissioner has warned the government that the Netherlands must significantly step up efforts to limit damage from a changing climate. The warning follows a major review of the long-term Dutch water strategy, carried out every six years under the National Delta Programme. This year's extreme drought, which caused freshwater shortages and growing salt intrusion, again exposed the country's vulnerability. The review concludes that continuing on the current course is not an option, and that a different approach to living in the delta is now needed.
What does the review conclude?
The review finds that climate change is progressing faster, and its impacts are more severe, than previously expected. Sea levels and river flows are rising, while competition for limited space in the Netherlands is intensifying. As a result, far more measures are needed to protect the country, including substantial new investment. For example, billions of euros will be required for new pumping stations to help discharge excess water to the sea.
Why is drought becoming more pressing?
Following dry years in 2018 and 2022, this year's drought again caused water shortages and very low river flows, a pattern that could become the new normal. Between 2021 and 2027, water authorities and the government are investing eight hundred million euros in measures such as restoring natural stream patterns and creating water buffers, which helped limit damage this summer. However, the review shows that further investment is needed, partly because inflows to the IJsselmeer, a key freshwater reserve for half the Netherlands, are declining in dry periods. The Delta Commissioner advises gradually adjusting the IJsselmeer water level and making river flow distribution more flexible to better direct water to where it is needed most.
What does this mean for flooding and land use?
The review also concludes that the Netherlands is not well prepared for heavy rainfall and surface water flooding, which can disrupt daily life and cause significant damage well beyond flooded streets. Following the extreme rainfall in Limburg in 2021, regions have mapped their vulnerability to similar events and identified the need to protect critical infrastructure such as hospitals and electricity substations, alongside more water storage capacity. At the same time, the review states that technical measures alone will not be enough. Adapting land use in the most vulnerable areas is described as unavoidable. Shifting climate zones are also affecting plants and animal species, requiring nature policy to adapt accordingly.