Do we need a United Ireland to protect the island’s environment?

It is for their rivers and their lakes “fair jumping with salmon” that playwright Frank Mc Guinness’s Ulstermen charge to their death in the Battle of the Somme.
In his play Observe the Sons of Ulster Marching Towards the Somme, revived for 2016 in theatres in Dublin and Belfast and London, he located his Ulstermen going into their tragic battle as natives of this beautiful island, springing from its soil and sustained by its waters.