This summer, Mayor Zohran Mamdani declared at least three heat emergencies in New York City, with some lasting over two days. Meanwhile, the city’s latest heat mortality report estimates that around 500 people die prematurely from heat every year.
The report identified 19 heat-stress deaths during the June 2025 heatwave—nearly three times the average of seven such fatalities per year over the previous decade. And between 2016 and 2025, 71 New Yorkers died from heat stress. Many of those deaths occurred indoors. Of the 25 indoor deaths for which the city has information, none of the victims had air conditioning or were using it at the time.
Over this year’s July 4 weekend, when temperatures hit 100 degrees in the city, three people died in their homes. Cheryl Kamen, St. Nick’s Alliance deputy director of elder care for older adult centers, said owning an air conditioner isn’t enough, because some people can’t afford to use them.
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📸 Courtesy of the St. Nick’s Alliance, Getty Images, Pexels and Mosabber Hossain
The prospective relinking of the UK and EU emissions trading systems could become a decisive driver for sustainable construction, especially for cement, steel and other carbon-intensive products. Stronger carbon pricing would make embodied carbon, whole life carbon and whole life carbon assessment central to procurement, cost planning and commercial risk. Developers, contractors and clients are likely to face greater scrutiny of the carbon footprint of construction, with low carbon construction materials, environmental product declarations (EPDs) and sustainable material specification moving from best practice to market expectation.
This shift reinforces the business case for lifecycle assessment, life cycle cost analysis and life cycle thinking in construction. Net zero carbon buildings and net zero whole life carbon strategies will depend not only on operational energy performance but also on embodied carbon in materials, circular economy principles and end-of-life reuse in construction. For project teams, sustainable building design, low carbon design and eco-design for buildings are becoming practical responses to policy, investor pressure and rising exposure to carbon costs.
Energy markets are strengthening the same direction of travel. Wood Mackenzie’s finding that four-hour battery storage now beats open-cycle gas turbines on cost in major markets supports all-electric, energy-efficient buildings designed around flexibility, storage and demand management. Low carbon building strategies are becoming more credible as grid systems decarbonise, improving building lifecycle performance and accelerating decarbonising the built environment.
Planning and delivery capacity remain serious constraints. Local authorities struggling to meet planning deadlines could slow housing, retrofit, green infrastructure and sustainable urban development, even as planning performance agreement fees rise. The Federation of Master Builders’ estimate that rogue builders have cost northern households more than £3bn exposes another weakness: environmental sustainability in construction depends on competent, regulated delivery as much as on green building materials, renewable building materials or BREEAM standards, including BREEAM v7.
Mandatory licensing and stronger quality control may prove essential to sustainable building practices, circular construction strategies and resource efficiency in construction. Sustainable design, eco-friendly construction and carbon neutral construction are increasingly viable in technology and economics; the critical test is whether the UK’s planning system, skills base and supply chain can deliver low-impact construction at scale.
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