The Taoiseach is one of 120 international leaders heading to New York for a UN summit on climate change.
Enda Kenny is expected to emphasise Ireland's commitment to playing its part in tackling the issue.
A proposal to charge the worst offending companies and countries is expected to dominate the event's agenda at the summit convened by United Nations secretary general Ban Ki-Moon with the intention of restoring momentum to the international battle against climate change.
Research from the World Bank shows more than 70 governments support the idea.
UN Secretary-General Ban Ki-Moon says he hopes world leaders can agree to changes.
Environmentalists have staged street demonstrations in Manhattan, as well as cities around the globe including London, in the run-up to the Climate Summit to put pressure on world leaders to sign up to an ambitious deal in Paris in 2015.