Retreat
Screening Room IV
In Retreat, we turn to the Earth’s ice-covered places, with a particular focus on the polar regions. Two works set the scene: co-curator David Cass’s Till (made in collaboration with digital artist Sam Healy) and Adam Sébire’s Sikkorluppoq, each concerned with ice-cover in the Arctic. The poles are often described as ground zero for climate change, and summer Arctic sea-ice extent is a clear indicator of that process: Cass & Healy’s data-driven summary shows the region’s summer ice declining from roughly 8–9 million km² in 1895 to 4.28 million km² in 2024 – effectively a loss of about half the summer cover. Sébire’s film translates that loss into lived terms, showing how summer retreat shapes the daily realities of communities in northern Kalaallit Nunaat (Greenland) year-round.
In broader terms, as ice retreats – both at sea and on land – Earth loses vital reflective surfaces that send sunlight back into space; more solar energy is therefore absorbed by the ocean, which has taken up the majority of recent excess heat and now sits at record-high heat content, reducing its ability to buffer further warming, triggering cascading impacts.