Study led by Irish scientists shows low-smoke fuels at least double emissions of toxic ultrafine particles

Transport Infrastructure Ireland analysis shows climate change threatens national routes, from motorways to rural ‘lifeline’ roads

Company owner claims defamation and wants An Garda Siochána to hand over activist’s complaints

James Browne outlines how State intervention could be most cost-effective solution for homeowners and communities

Ringsend plant now has headroom for Dublin’s growth but extra capacity will soon be used up

Circular economy strategy aims to cut waste and increase reuse and recycling

Plans for LNG, Dublin Airport passenger cap and data-centre expansion ‘need scrutiny’

Cases show tensions between advisers and councillors over building on land that is at risk of flooding

Software giant Microsoft’s electricity demands remain a source of contention, in particular when it comes to powering AI

Minister says plan is coming, but academics say there is no justification for holdup

Planning regulator intervened 93 times to stop zoning on sites in nine counties, with more interventions still under way

Fewer than one fifth of schemes given priority in 2016 have reached the construction stage

Thirty-one of 54 big projects deemed priority works in 2018 remain on the drawing board

Just 10 of 54 projects prioritised for development in 2018 are under construction

Valuable time lost in raising alert on the incident, notes review by European Union scientists