A good place to start would be if Coillte stopped planted sitka spruce and began planting native trees.
Sitka is an absolute environmental disaster. Bog land was ploughed to plant them which released carbon, the trees themselves leave the soil useless for growing anything else afterwards, the clear felling (using heavy machinery) causes acidic sediment to drain into lakes and rivers.
Bio-diversity is out the window.
Then there is Coillte's overuse of pesticides - if the bees continue to die at current rates we are all extinct.
It's short sighted thinking with making a fast profit the only concern and damn the consequences to the environment.