The Foyle MLA said: “It becomes clearer, day by day, that Brexit will have an incredible and irreversible impact on life across this island.
“We recognise it, the Irish Government recognises it and the European Union recognises it.
“The British Government’s head in the sand approach to the layered complexities of the political and economic situation facing this island cannot continue.
“The only way to mitigate the coming crisis is for voices across Ireland to be heard at the negotiating table.
“The lived experience of people here, North and South, has provided the creative compromise to unlock intractable problems before. It will again.
“Firm, positive and constructive intervention from the Irish Government to table joint proposals that can unlock the deadlock at Stormont are now needed to free our politics and provide a strong voice for the North in Brexit talks.”