9. Natural ventilation

14 January, 2009

55 Monodraught Windcatchers on the roof of this building on Kennington Park Business Centre in London provide natural ventilation, with cooling, for offices on the third floor.

Taking energy-using plant out of a building is certainly one way to cut back carbon emissions. A well-planned natural-ventilation project will allow a building owner to do just this. Natural ventilation uses the forces of wind and buoyancy to drive fresh air into buildings. It is arguably more an approach than a technology, but products can be designed to help the process carry out tasks such as filtering pollutants that may be caught up in the air. With legislation increasingly favouring natural, low-carbon solutions, could natural ventilation be the H&V technology to claim the crown of carbon champion?

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New procurement rules for NHS suppliers

New procurement rules mean NHS suppliers will need to demonstrate their green credentials so the NHS can achieve its target of becoming net zero for directly-controlled emissions by 2040, with an ambition to reach an 80% reduction in its carbon emissions between 2028 to 2032.

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