Leo Varadkar (Dublin West, Fine Gael) | Oireachtas source

I do not know where the Deputy gets her information but carbon emissions in British Columbia are down by 9% since they introduced their carbon charge regime. Carbon tax does not reduce emissions overnight. That is not the point. The point is that over time, it tips the balance in favour of investment in green technologies and heating systems and in electrical vehicles over those that are polluting. The Deputy sounds to me like one of the hard Brexiteers across the water. We know what she is against but we do not know what she is for. The stuff she is for is only the stuff that is popular. If she thinks we are going to meet our obligations to reduce carbon emissions, be able to take climate action, and respond to the demands of those young people who want us to get our act together on climate change by only doing things that are popular, by only doing investments and handing out grants, then I do not think even she believes her own rubbish.

See this speech in context