<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjItMTAvYjhiMTkxNDctNDNiMC00ZDgxLWI2NmEtZTRkZmZhZGFjM2NkLmpwZw==.jpg"></p><p>A warehouse in the Netherlands swapped out natural gas for Bitcoin miner heating — saving money, efficiency and the planet.</p>