https://arstechnica.com/science/2021/06/alberta-oil-company-pull-plug-on-keystone-xl-pipeline/ > Construction of the controversial Keystone XL pipeline was officially terminated on Wednesday, handing a big victory to environmentalists who fought the project for more than a decade as they intensified their battles against other fossil fuel development. > The decision by TC Energy and the government of Alberta to pull the plug on the $8 billion pipeline had been widely expected after Joe Biden scrapped the permit to build its US leg in one of his first acts as president.