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BBC News
Published July 11, 2021.
How flooded coal mines could heat homes
Coal mines were the beating heart of Britain's industrial revolution. Their sooty, energy-dense output gave life to new-fangled factories and shipyards, fueling the nation's march towards modernity. They helped shape a carbon-intensive economy, one that took little notice of the natural world around it. The mines paved the way for a global dependence on fossil fuels, and in doing so, fired the starting pistol on the climate crisis that today confronts us all.
But what if, in a serendipitous circle of history, our extractive past could be repurposed for a greener, cleaner future? What if the vast maze of coal mines beneath our feet, now filled with naturally warm water, could help decarbonize the UK's – and the world's – herculean heating needs?
That's the question Adam Black, a renewable energy enthusiast employed by one of Britain's largest bottling firms, asked himself a decade ago. "I had about 400,000 sq ft [37,000 sq m] of warehouse that needed heating," says the director of energy projects at Durham-based Lanchester Wines. "And it was right over four layers of mine workings, which had naturally flooded over time."]
With the help of a few geothermal experts from Iceland, Black sunk a borehole into the murky depths of the old High Main coal seam in Gateshead, Tyne and Wear, England. Warmed by natural geological processes, the water they pumped to the surface was a pleasant 15 oC (59 ºF).
With a little supplemental warmth from an electrical heat pump – "a bit like a fridge in reverse" – it was perfect for keeping the company's warehouse, and the millions of wine bottles within, at the right temperature.
(Adaptado de BBC News Future. Disponível em: https://www.bbc.com/future/article/20210706-how-flooded-coal-mines-could-heat-homes#:~:text= It%20is%20estimated%20that%20around,the%20potential%20to%20store%20more.&text=Once%20its%20heat%20has%20been,will%20be%20warmed%20 up%20again.)
Based on the reading, consider the following sentences:
1. Coal mines were responsible for the climate crisis in Britain.
2. The British government is investing in coal mines to turn them in eco-friedly energy suppliers.
3. To keep wine bottles in the right temperature at the warehouse, the wine producers pumped water from the abandoned mines beneath it and refrigerated it.
Choose the correct alternative.
