Trump is working on controversial pipeline

washington - The new US president Donald Trump has signed papers Tuesday to accelerate the construction of two large, controversial oil pipeline.

Trump blows with his Tuesday issued decrees deleted the Keystone XL project by his predecessor, Barack Obama new life. Moreover, he wants to resume disused Dakota Access project. In his election campaign, he said it would be working again under his leadership of those projects.

Obama drew a line in 2015 by Keystone, the nearly 1,900-kilometer pipeline that would transport crude oil from the tar sands fields in Canada to refineries in the southern US Environmental groups protested ultimately for years against the plan and Obama decided it megaproject was not in the interest of the US.

Dakota Access is in addition to general environmental concerns, for example about possible contamination by leaks, controversial because the pipeline runs through a reserve of the Sioux Indians.

The fate of the projects was by Trump or related to renegotiation of its terms. So he wants a 'better deal' agreements with TransCanada, the owner of Keystone XL. In addition, the president wants to include the steel pipes manufactured in the USA. 'If we are going to build these lines in the US, then they should be made in the US,' he said.