The protest is being referred to as a "last resort".
Patricia Devlin, a 78-year-old woman from Monasterevin in Kildare, is due to begin a hunger strike outside of Dáil Éireann just after noon on Wednesday.
She will be calling on the Irish Government to act immediately on the climate and ecological emergency that scientists say threatens the extinction of a million species across the world.
Devlin says she wants to highlight the vulnerability of the global food supply and the impact climate change will have on our "ability to survive in an era of extreme weather, increasing temperatures and rising sea levels".
The hunger strike will begin at 12.30pm on Wednesday outside Dáil Éireann.
Devlin will be holding
large photographs of her grandchildren and a ‘Climate Hunger Strike’ poster, as well as a copy of a letter sent to Minister Richard Bruton asking him to meet with Extinction Rebellion to discuss their demands.
Groups of activists will be in the background to hold up colourful banners and placards in an attempt to offer their support to Devlin.
Speaking about the strike, Extinction Rebellion Ireland said that she is not taking the decision to go on a hunger strike lightly and that she has had a health check with her GP beforehand.
However, she says she has no other option given what she describes as "insufficient action" on the part of Irish political leaders.
She said: "My main motivation to go on hunger strike is my anxiety for the future of our planet and in particularly the legacy I am leaving for my grandchildren."
