Microsoft and other US tech companies successfully lobbied the EU to hide the environmental toll of their datacentres, an investigation has found, with demands to block a database of green metrics from public view written almost word for word into EU rules.The secrecy provision, which the European Commission added to its proposal almost verbatim after industry lobbying in 2024, hinders scrutiny of the pollution that individual datacentres emit. It leaves researchers with just national-level summ...