It started with the mysterious discovery of more than a hundred turtles, some with their shells smashed, others dismembered, all of them dead. It ended with a potential warning for the future.
It was Gregory Bulté who found the turtles. The biologist from Carleton University was out on the water of eastern Ontario's Opinicon Lake in April 2022 when he saw a dead northern map turtle — so-called because its shell resembles the contour lines of a map. As he bent to pick it up from the shallows, he saw another.
Bulté raced home, fetched his wetsuit and snorkel and got into the frigid water — where winter ice had recently melted — to collect the bodies. He kept finding more piles of dead turtles; he filled buckets with them. "I was like, 'Whoa, when is this going to end?'" he said.
When it eventually did, he had nearly 150 dead turtles, many of which Bulté knew from his two decades of monitoring work at the near-pristine, forest fringed lake. It was a devastating blow, wiping out roughly 10% of the lake's population.
The deaths were a puzzle for Bulté. It was clear from the turtles' damaged bodies that this was a predator attack, and only one animal was likely strong enough to have done it: the river otter.
Read more at the link in our bio.
📸: Michael O. Snyder and Justin Dalaba
England’s summer water stress is resetting sustainable building design. Projects are moving from passive consumption to active water stewardship through leakage reduction, smart metering, rainwater and greywater reuse, drought‑resilient landscapes and green infrastructure. Specifications are shifting to sustainable material specification and eco-design for buildings that tolerate heat and shrink–swell cycles, tying water resilience to building lifecycle performance, lifecycle assessment and whole life carbon assessment. Clients are demanding measurable carbon footprint reduction and life cycle cost certainty across design, build and operation.
Climate risk extends to cold regions as permafrost degradation destabilises foundations, roads and pipelines. Geotechnical strategies now require continuous monitoring, adaptable detailing and low carbon design aligned with environmental sustainability in construction. Frameworks such as BREEAM, including breeam v7, are expected to hard‑wire resilience, whole life carbon and sustainable building practices into procurement. Designers are prioritising low embodied carbon materials evidenced by environmental product declarations (epds), together with green building materials and renewable building materials, to reduce embodied carbon in materials and the carbon footprint of construction while supporting circular economy goals.
Market responses are consolidating around retrofit‑first and industrialised delivery. Adaptive reuse of offices in London, exemplified by deep retrofits such as 75 London Wall, preserves structure, slashes embodied carbon, advances circular economy in construction and enables end-of-life reuse in construction through circular construction strategies. Modular and offsite expansion across the Benelux is improving resource efficiency in construction, cutting waste and accelerating programmes with low carbon construction materials and green building products, supporting eco‑friendly construction and green construction. Energy volatility is accelerating net zero carbon buildings and energy-efficient buildings through electrification, on‑site generation and storage, and long‑term power purchase agreements. Briefs now target net zero whole life carbon and carbon neutral construction, integrating sustainable design, low carbon building strategies and decarbonising the built environment with robust life cycle thinking in construction.
The direction of travel is clear: rigorous whole life carbon, embodied carbon and lifecycle assessment embedded in sustainable construction, backed by metered water budgets and verifiable performance data, will define sustainable urban development, drive the circular economy and deliver net zero carbon goals across building and construction.
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