Wedoany.com Report on Mar 6th, Addressing the impacts of climate change is one of the greatest challenges we face today. With sea levels rising at an alarming rate, a more circular approach to dredging could play a key role in protecting the UK's coastlines and inland waterways. According to data from the Intergovernmental Panel on Climate Change, global sea levels rose by 1-2 mm per year over the past century, and the current rate of rise is 3-4 mm per year, with a sharp acceleration expected from 2040 onwards. Precious ecosystems such as salt marshes are at risk of being destroyed. Circular dredging projects offer a sustainable solution for habitat restoration by reusing waste sediment.

Sustainable dredging solutions provider Land + Water employs a two-stage project delivery method. The first stage is Early Contractor Involvement (ECI), collaborating with clients and regulators to design restoration schemes oriented towards natural outcomes. For instance, at Lymington Harbour, a salt marsh restoration project is addressing erosion that weakens natural coastal defences. Parts of the Solent are losing 2-3 metres of salt marsh annually, primarily due to human factors exacerbated by sea-level rise.

The circular dredging model, which restores salt marshes by reusing waste material, has shown success in projects like Rainham Marshes in Essex. This project, in collaboration with the Port of London Authority and the RSPB, reused over 2 million tonnes of waste material to create habitats for wildlife, with no cost to the taxpayer. New financing solutions such as environmental credits could facilitate more circular dredging projects.

The industry requires a shift in mindset and collaboration to advance the circular dredging model. Early adopters are already seeing results, and strong partnerships can transform dredging practices to protect the environment. The circular dredging approach offers a sustainable path to tackling climate change and safeguarding the UK's waterways.