Labour TD Kevin Humphreys described Eamon Ryan's comments as "unbelievable".
Mr Humphrey's said: "In contrast to Eamon Ryan and his colleagues, Labour in government delivered climate change legislation. The passing of the Climate Action and Low Carbon Development Bill 2015 is a hugely significant and historic milestone.
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"It means that Ireland is one of only a handful of countries in Europe that have legislated and committed ourselves to meeting our EU 2020 carbon emission targets in law.
"This legislation hardwires action and accountability on climate change into the political system. It also helps ensure that we play our part internationally in tackling climate change.
"Eamon Ryan also said that he felt that his experience in Government had been positive. While he might have found it positive I am sure that the 250,000 people who lost their job on his watch didn't find it a positive experience."
(CD/JP)
