Three-time Oscar nominee Mark Ruffalo has lent his support to an anti-fracking campaign in Ireland.
The campaigners, among them People Before Profit TD Brid Smith, are calling on the government to reject a project which would import fracked gas from the United States to a terminal on the Shannon estuary.
Fracking is currently illegal in Ireland.
The actor was joined on The Last Word by Julia Walsh, Campaign Director of Frack Action, to discuss why they want the government to stop the proposal going ahead.
Listen to the interview in full by pressing the play button on this page.