Europe's first auction of carbon allowances for the EU Emissions Trading Scheme (ETS) has been held.
The continuing water shortage in Dublin has led to the consideration of creating a reservoir in the midlands to be used as a water storage depot.
Dublin has become the home for the development of the world's first eco computer.
Precautions have been taken to ensure that there is no further spread of a life threatening bacteria found in the water supply at Lourdes Hospital, in Drogheda.
The difficulty in improving water quality in Europe, as well as across Ireland, was among the topics debated at a recent conference held in County Wexford.
The amount of serious pollution in rivers and lakes in Ireland has reached its lowest level in recent decades.
The current financial situation in Ireland has helped many businesses improve their eco-friendliness, experts have said.
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