The White House has yet to embrace the proposed expansion of the Keystone XL pipeline, but the American public is on board.

A new Fox News poll shows support for the project has reached a new high, with 70 percent supporting its construction and 23 percent opposing it. That 70 percent support figure is up from 67 percent a year ago. Other polls at the time showed slightly lower levels of support, though still huge majorities in favor.

The increase appears to be due to a rise in support among Democrats, who now support it with a clear majority — 57 percent.

The issue hasn't been on the radar screen in recent months, but President Obama has suggested in recent weeks that he wants to act on climate change — which could have implications for the Keystone XL project.