Tourists take photos at the American Falls in Niagara Falls, New York on October 25, 2022. - In the US city of Niagara Falls, residents accustomed to the soothing rumble of famous waterfalls have recently discovered a much less pleasant sound: the roar of bitcoin mining farms. (Photo by Geoff Robins / AFP)

People walk along the Niagara River near the American Falls in Niagara Falls, New York on October 25, 2022. - In the US city of Niagara Falls, residents accustomed to the soothing rumble of famous waterfalls have recently discovered a much less pleasant sound: the roar of bitcoin mining farms. (Photo by Geoff Robins / AFP)

A photographer takes a photo at the American Falls in Niagara Falls, New York on October 25, 2022. - In the US city of Niagara Falls, residents accustomed to the soothing rumble of famous waterfalls have recently discovered a much less pleasant sound: the roar of bitcoin mining farms. (Photo by Geoff Robins / AFP)

A person walks along the Niagara River near the American Falls in Niagara Falls, New York on October 25, 2022. - In the US city of Niagara Falls, residents accustomed to the soothing rumble of famous waterfalls have recently discovered a much less pleasant sound: the roar of bitcoin mining farms. (Photo by Geoff Robins / AFP)

Photographers compose their photos at the American Falls in Niagara Falls, New York on October 25, 2022. - In the US city of Niagara Falls, residents accustomed to the soothing rumble of famous waterfalls have recently discovered a much less pleasant sound: the roar of bitcoin mining farms. (Photo by Geoff Robins / AFP)

A group of people walk across a bridge to Green Island near the American Falls in Niagara Falls, New York on October 25, 2022. - In the US city of Niagara Falls, residents accustomed to the soothing rumble of famous waterfalls have recently discovered a much less pleasant sound: the roar of bitcoin mining farms. (Photo by Geoff Robins / AFP)

People take a selfie at the American Falls in Niagara Falls, New York on October 25, 2022. - In the US city of Niagara Falls, residents accustomed to the soothing rumble of famous waterfalls have recently discovered a much less pleasant sound: the roar of bitcoin mining farms. (Photo by Geoff Robins / AFP)