Empire strikes back with green refit

New York’s iconic Empire State Building is set to have a green refurb – currently the ageing building is draughty and expensive to heat, with a huge carbon footprint. But the city’s tallest building could soon be one of its greenest. The owners of the 102-storey tower are hoping to cut its carbon emissions by 38% and shave £2.8m off its £6.7m annual energy bill. There are several areas involved in the upgrade, each of which contributes between 2% and 8% of the overall saving. The windows are one of the biggest challenges, and are due to be finished soon.
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