We explain a new article type that is being introduced in participating EGU publications. "LESSONS" articles describe the Limitations, Errors, Surprises, Shortcomings and Opportunities for New Science emerging from the scientific process. The publication of non-positive results and associated learnings aims to complete an unbiased record of the research effort, contributes to open and transparent science, allows the authors and others to learn, and may open opportunities for new science.

Novel hydrodynamic observations 40 m from an offshore wind turbine monopile show that the turbulent tidal lee wake doubles the drag acting on the seabed, potentially enhancing sediment transport and impacting the seabed habitat and the organisms that utilise it. It also enhances the vertical mixing of the water column, which drives the transport of heat, nutrients and oxygen. As offshore wind farms rapidly expand into deeper waters, array-scale wakes may have significant ecological impacts.

Science communication in geosciences has societal and scientific value but often operates in “shadowlands”. This editorial highlights these issues and proposes potential solutions. Our objective is to create a transparent and responsible geoscience communication landscape, fostering scientific progress, the well-being of scientists, and societal benefits.

To allow for more effective use of climate science, this work proposes and evaluates an open-access R code that deploys a measure of how natural hazards (e.g. extreme wind and flooding) co-occur, is obtainable from scientific research and is usable in practice without restricted data (climate or risk) being exposed. The approach can be applied to hazards in various sectors (e.g. road, rail and telecommunications).

Co-RISK is a workshop-based toolkit to aid the co-creation of joint projects in various sectors (e.g. insurance, rail, power generation) impacted by natural hazard risks. There is a genuine need to quickly convert the latest insights from environmental research into real-world climate change adaptation strategies, and a gap exists for an accessible (i.e. open access, low tech, zero cost) and practical solution tailored to assist with this.