Water scarcity is a huge global issue. More than 2 billion people lack access to safe drinking water, a situation set to worsen due to climate change, which fuels longer and more severe drought. As reservoirs shrink, groundwater dries up and rainy seasons become more erratic, some believe one answer to this crisis lies in the reservoirs of moisture in our skies.
Engineers at the Massachusetts Institute of Technology created a water harvesting device that is a window-sized panel made with absorbent material called "hydrogel," which has been infused with salt, folded up like origami and enclosed in glass.
The material, which looks like black bubble wrap, absorbs water vapor directly from the air, swelling up as it does so, then shrinking again as the water evaporates. The water condenses on the glass and flows down a tube to emerge as fresh, drinkable water. No power is needed, just heat from the sun.
The device doesn't produce a huge amount of water from the bone-dry air — around two-thirds of a cup a day — but the ultimate aim is to supply a household with drinking water even in arid deserts, said Xuanhe Zhao, a mechanical engineering professor at MIT.
Read more at the link in our bio.
📸: MIT
Sustainable construction is under intensifying scrutiny as the climate agenda accelerates while policy certainty wanes. The UK faces warnings that withdrawing the Energy Company Obligation could erase tens of thousands of retrofit jobs, exposing how dependent the sector remains on stable incentives. Protecting retrofit capacity is critical for achieving net zero carbon buildings and advancing environmental sustainability in construction. Efficiency remains the most cost-effective route to decarbonising the built environment and reducing the carbon footprint of construction.
Global frameworks are tightening around embodied carbon and whole life carbon assessment. The Paris Agreement’s next phase favours coalitions of clients, cities, and contractors willing to lead on embodied carbon reduction and develop credible lifecycle assessment standards ahead of regulation. For construction supply chains, rising expectations on due diligence mean contractors and designers must integrate whole life carbon strategies, life cycle cost analysis, and environmental product declarations (EPDs) into procurement and specification. Financial institutions now view verified data on embodied carbon in materials and low carbon construction materials as core to investment decisions.
Negotiations toward a global minerals accord at the UN Environment Assembly faltered, leaving constructors reliant on voluntary disclosure frameworks to manage the environmental impact of construction. The pressure to adopt sustainable building practices and circular construction strategies will rise as green infrastructure investors demand transparent reporting on resource efficiency in construction and low embodied carbon materials.
Scotland’s indicative cap on incineration capacity points to a structural shift from waste-to-energy dependence to true circular economy in construction. This pivot compels the use of recycled aggregates, end-of-life reuse in construction, and eco-design for buildings with disassembly in mind. Demolition protocols are tightening, pushing sustainable building design to minimise waste generation throughout the building lifecycle performance. Such policy evolution aligns with the principles of sustainable material specification and circular economy integration mandated in BREEAM and BREEAM v7 frameworks.
Industrial decarbonisation is taking shape through low carbon design clusters such as the proposed green chemicals hub at Grangemouth. The initiative, supported by the Just Transition Fund, targets renewable building materials, low carbon feedstocks for insulation, and carbon neutral construction manufacturing. These projects signal a shift from pilot schemes to scalable, commercially viable low carbon building solutions that align with whole life carbon and net zero whole life carbon metrics.
The pathway forward for the sector demands consistent application of lifecycle assessment methodologies, greater adoption of sustainable building design, and measurable carbon footprint reduction. Firms that embed circular economy principles, optimise energy-efficient buildings performance, and employ green construction products stand to lead in life cycle thinking in construction. Waiting for complete policy alignment risks both competitiveness and compliance as markets move toward verifiable net zero carbon delivery.
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