

“Despite painting sea for the better part of fifteen years, I had never lived in sight of the sea until moving to Athens, Greece, in 2021 – where I now spend part of my year. I started this project in a workspace which looked out over a great panorama: Piraeus port to the north, Vouliagmeni to the south, and the islet of Ydroussa in between (colloquially known as ‘black island,’ for the numerous times, decades ago, when it was covered by oil from run aground tankers on their approach to the nearby port). From here, I had expected to paint islands and coastlines, but instead found myself captivated by endless ever-changing light on water.
But a threat rests behind this picture. The result of sunlight on seawater (and the heat trapped in our atmosphere by a blanket of greenhouse gases) is the warming of that water. More than 90 percent of this heat goes into the sea. And as warming climbs exponentially, our planet’s oceans – also home to most of its life – won’t be able to store any more of it.
Every other breath we take comes from microscopic underwater organisms. That same water is absorbing nine times as much global warming as the world above the surface.
This series is a contemplation of sea surfaces, but also an invitation to look deeper. Some works painted using a monochrome palette – or displaying more contrast between dark and light – reference ice-cover at the North & South Poles. In these locations, we are faced with one of the most striking visuals of the climate crisis: a battle of light vs. dark. As we lose ice, we also lose its ability to reflect sunlight. In these works, the lighter marks represent ice, bouncing sunlight away and protecting the sea below.
The series is both a homage to our oceans, and springboard for wider discussion.”
Reduce (2024)
Box lid · Fife
Oil, solar reflective paint, spray paint, ink
31.5 x 88cm
Available via Thompson’s Galleries
Contribute (2024)
Canvas & paper nautical map · Athens
Oil · 80 x 140cm
£3750
Identify (2022 – 2023)
Bus blind · Brussels
Oil bar, oil, spray paint, pastel · 120 x 80cm
£3600
Measure (2024)
Beer mats · London
Plaster & oil · 50 x 46cm
Available via Thompson’s Galleries
Congress (2022 – 2024)
Bus blind · Brussels
Oil bar, oil, spray paint, pastel · 32 x 68.5cm
£2200
Observe (2024)
Board · Athens
Oil · 128.5 x 97.5cm
£3800
Attempt (2022 – 2023)
Bus blind & book covers · Brussels & London
Oil · 70 x 70cm
Available via Thompson’s Galleries
Process (2024)
Board · Athens
Oil bar, oil, pastel · 80 x 75cm
£2700
Trace (2023)
Canvas nautical map · Athens
Oil · 72.5 x 31.5cm
Sold
Persist (2023 – 2024)
Bus blind · Brussels
Oil bar, oil, pastel, plaster · 35 x 37cm
£840
Account (2023 – 2024)
Bus blind · Brussels
Oil · 60 x 40cm
Available via Thompson’s Galleries
Recount (2022 – 2023)
Bus blind · Brussels
Oil bar, oil, spray paint, pastel · 130 x 80cm
£3600
Mend (2024)
Bus blind & salvaged canvas · Brussels
Oil · 43 x 38.5cm
Sold
Confer (2024)
Bus blind · Brussels
Oil · 60 x 40cm
Sold


Object Works

September 2020–April 2024
C.18th solid oak plank door · Norfolk
Gouache · 77 x 196 x 4cm
Shortlisted for the John Ruskin Prize 2025
Price on request – email to enquire
Light on Water also includes artworks painted onto more three-dimensional found objects, including items as diverse as boat pulleys, doors and codfish boxes. Many of these come from the same flea-markets and antique shops where the canvas-like surfaces above were sourced, but other object groupings come from further afield.
During 2023, Cass co-curated Points of Return, a 27-artist multimedia show in Massachusetts, USA. Whilst there, he gathered various smaller objects with clear links to the New England coast. Points of Return offers strategies and reasons for optimism in the face of climate crisis; Light on Water aims quietly to do something similar, through use of recycled materials and patient dedication to the production process.
Flask (2024)
Rare wooden teardrop canteen · Athens
Oil · 32 x 14 x 10cm
Sold
Flask (2024)
Rare wooden teardrop canteen · Athens
Oil · 32 x 14 x 10cm
Sold
Pulley III (2024)
Metal marine pulley · Norway, ME
Oil · 10 x 2.5 x 1.5cm
Sold
Pulley IV (2024)
Marine pulley · Camden, ME
Oil · 18 x 8 x 6cm
Available
“Although working at an intimate scale, Cass zooms outward as he paints undulating waves on antique tins, matchboxes, pulleys, and more, a collection of 17 of which are installed at Joy Machine. Visible swipes of paint delineate the horizon in some pieces, while others are entirely awash in curved lines. Interested in conveying the effects of a heating planet and rising waters, Cass uses repurposed, human-made containers representative of physical constraints as metaphors for our collective limits to adapt.”
Years series (2023 – 2024)
Wooden boxes, drawers & trunk parts
Oil · various dimensions
Explore full series
Years II or 500 Years (after van Eertvelt) Detail (2023 – 2024)
Artist's box insert · Paris
Oil & pencil · 16 x 29 x 2cm
Explore full series
The Scottish Gallery (September 2024)
Photographer: John McKenzie
“Somehow [Light on Water] manages to be both an in-depth reflection on surfaces of water (if that is not an inherent contradiction) and to embody deep concerns with climate change. In a sense, these works are abstract. They don’t depict particular stretches of water, but are concerned with colours and moods; water is the language of the work as much as the subject. The hang places the paintings at different levels, creating the sense of the work as the sum of its parts as well as inviting us to look at individual components … Cass approaches his subject with such energy and engagement that it’s rarely dull, and manages to spark reflection on climate change without allowing [Light on Water] to feel heavy-handed or overly didactic.”
“For David Cass, the sea offers an endless source of wonder at its depths, history, bounty, and sometimes ferocity ... the artist has long been fascinated by the power of water, especially its increasing vulnerability to the effects of the climate crisis. In Light on Water, the artist continues to address the warming and rapid rising of ocean levels around the world through paintings that hover between abstraction and representation. Cass draws attention to estimates that 91 percent of Earth’s excess heat energy trapped in the climate system is stored by our oceans. As the planet continues to warm, this storage capability disappears, threatening all manner of life...”
Installation views at The Scottish Gallery (September 2024)
Photography: David Cass & John McKenzie