Along some 70 miles of Southern California coastline, usually curious and...

CNN Climate 1 year ago

Along some 70 miles of Southern California coastline, usually curious and playful sea lions are attacking humans in the water. The animals are being poisoned by the ocean they live in, experts say, citing reports of sick sea lions at unprecedented levels. And many are dying. Pheobe Beltran, a 15-year-old girl in Long Beach, was swimming on March 30, when a sea lion attacked her right arm. "I was just so scared, so shocked, but I still felt the immense pain on my arms, like, over and over again," Beltran, who was finishing up a 1,000-yard swim during tryouts to become a junior lifeguard, told CNN affiliate KCAL. Up the coast in Ventura County on March 21, a surfer near Oxnard, was bitten by a sea lion in open water. The attack left him "shaken" to his core, he said. The cause is less demonic and more likely domoic acid toxicosis caused by toxic algal bloom, often referred to as red tide, experts say. "The sea lions are coming in almost comatose by the time they're stranding. Something is happening in this particular bloom that seems worse on multiple levels," John Warner, CEO of the Marine Mammal Care Center in Los Angeles, told CNN. "But volume-wise, it's definitely the worst we've ever seen." 📸: Mario Tama/Getty Images

layersDaily Sustainability Digest

Published about 4 hours ago



Momentum in sustainable construction is now driven by tangible progress in materials and methods rather than declarations. The focus on reducing embodied carbon in materials and undertaking robust whole life carbon assessment is reshaping how developers, architects and engineers define sustainable building design. Initiatives such as the Reducing Plastics in Construction Summit reinforce the value of renewable building materials, eco-design for buildings and circular economy in construction frameworks to eliminate petroleum-based polymers and improve resource efficiency in construction.

Biobased composites, recyclable resins and modular approaches are being evaluated through lifecycle assessment tools that can accurately measure the carbon footprint of construction and inform sustainable material specification throughout each project stage. Digitisation is rapidly becoming integral to low carbon design and energy-efficient buildings. Advanced platforms now enable unified modelling of cost, performance and carbon, aligning lifecycle cost optimisation with environmental sustainability in construction.

TM2 Bygg’s software-led method illustrates how low carbon building processes built on data-driven insights help achieve net zero carbon buildings and deliver improved building lifecycle performance. At the policy level, regulators are reinforcing requirements for measurable reductions in embodied carbon and clear evidence of net zero whole life carbon outcomes. These shifts point toward an industry-wide transformation grounded in whole life carbon transparency and the adoption of BREEAM v7 and other sustainable building practices to standardise reporting.

The result is a market that values circular construction strategies, end-of-life reuse in construction and environmental product declarations (EPDs) as verification of a project’s environmental impact of construction. New renewable energy infrastructure, including next‑generation geothermal systems, could redefine the carbon footprint reduction potential of green building materials and low carbon construction materials. As baseload renewables expand, achieving carbon neutral construction and sustainable urban development becomes increasingly viable. The sector is moving beyond pilot projects toward a mature phase of green construction, integrating life cycle thinking in construction and decarbonising the built environment as core business practice.

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