The head of the US Department of Energy called Russian gas "the dirtiest" in the world

She spoke about this at a hearing in the US House of Representatives Committee on Science, Space and Technology.

This is how Granholm commented on the construction of the Nord Stream 2 gas pipeline. 

“We are definitely against this pipeline.

And I will say on behalf of the Department of Energy that one of the reasons - apart from geopolitical issues related to Russia - one of the reasons I consider this pipeline very dangerous is because it transports the dirtiest form of natural gas on Earth. ", - TASS quotes her words.

Earlier, US President Joe Biden said that the construction of the Nord Stream 2 gas pipeline is almost complete and the introduction of restrictions on the project would be counterproductive for Washington's ties with Europe.