Embodied Carbon: Buildings

Debate between Ellie Chowns and Alison Taylor

Monday 13th July 2026 Commons Chamber

[Dr Ellie Chowns (North Herefordshire) (Green)]

The climate crisis is upon us. We in the UK are now in the midst of our third heatwave in less than three months. Communities have endured sweltering conditions that have put huge pressure on our NHS, our infrastructure and our natural environment. Our ambulance service has never been so busy. Tragically, lives have been lost as people have sought relief from the heat in rivers and lakes. Today, we have heard that it is estimated that there were 2,700 excess deaths due to just the May and June heatwaves. In my constituency, dozens of schools have had to close due to overheating. People are sweltering in hospitals, care homes and many other workplaces, and farmers and communities alike are facing critical water shortages.

Extreme heat is no longer an occasional inconvenience, and neither are extreme storms and floods; they are now part of everyday life, and we know that things are getting worse. If we are serious about protecting future generations from climate breakdown, every sector must play its part in reducing emissions. Today I will focus on one sector that is rarely discussed, despite having an environmental footprint unlike any other.

Globally, the construction of buildings contributes more than one tenth of the world’s carbon emissions—around four times the footprint of aviation. Here in the UK, the construction sector is responsible for fully 25% of the UK’s carbon footprint on a consumption basis. The built environment generates one third of the world’s waste—a figure surpassed only by food waste—and consumes nearly half of all the raw materials that we extract from the earth.

[Alison Taylor (Paisley and Renfrewshire North) (Lab)]

I thank the hon. Lady for giving such a thoughtful speech, and for leading this debate. As a chartered surveyor, I advised on some of Scotland’s first carbon-neutral developments. Does she agree that developers purchasing cleared sites often struggle to get the appropriate building research establishment environmental assessment method accreditation, due to shortcuts being taken by the previous owners of the sites during the demolition process?

[Dr Chowns]

The hon. Member makes an excellent point from a position of great expertise. That is precisely what this debate is about: we need to recognise that we should be reusing buildings as much as possible. We should be reducing the destruction caused by a failure to reuse. We should ensure that regulations are put in place that enable those who are developing, as well as those who have sites and responsibility for them, to take account of the whole life-cycle carbon assessment in deciding how to deal with a building. Let us take the waste hierarchy—reduce, reuse, recycle—into account in the construction sector, which is such a critical part of our nation’s carbon emissions.