Apple executives are joining top brass from 12 other major U.S. corporations at the White House today to announce a $140 billion pledge in new investments to decrease their carbon footprints.

The 13 companies which also includes Microsoft and Google, are joining the Obama Administration’s push to lead the effort against climate change ahead of the the United Nations climate-change summit in Paris later this year by launching the American Business Act on Climate Pledge.

Apple is building a massive new solar farm in California to power the company’s upcoming spaceship campus and other facilities, Apple CEO Tim Cook said Tuesday.

The solar farm will occupy 1,300 acres in Monterey, California. Cook said the move is a testament to Apple’s commitment to environmental responsibility.