France has banned short-haul flights where people are able to get a train instead, in a bid to reduce carbon emissions.
The ban affects journeys that can be completed by train in less than two-and-a-half hours.
The law also specifies that train routes must be frequent and able to meet the needs of passengers who would otherwise fly.
Lunchtime Live listener Anne has said Ireland needs to turn domestic flights into an industry.
"I think it's right for France - if it works for them, fine," she said.
"But just because France sneezes does Ireland have to catch a cold?
"In fact I think we should increase the infrastructure for domestic flights and put into an industry.
"I love flying, every chance I get.
"I have actually flown from Dublin to Kerry and back in one day.
"It's only cost me €40, whereas a train from Dublin Heuston to Tralee would be €73.60.
"The flight was cheaper and it was shorter - I was down in Kerry within two hours from Dublin, and it's four hours on the train each way".
Anne said she would be happy to see flights cut carbon emissions "if there was a viable alternative."
"What do trains use for fuel? Unless you have an electric train network".
Thomas said he would like to see more support for regional airports.
"I flew out from Cork actually recently - I am very supportive of the regional airports.
"There's no question about the impacts that they have and the benefits they can have for tourism.
"I would love to see a big chunk of flights into Dublin actually being directed towards our regional airports to provide for more regional tourism.
"A lot of people are flying into Dublin and... they're going straight down to Cork, Kerry, some of the beautiful sights that we see.
"It would absolutely make more sense for more of the hubs.
"But domestic flights, in a country the size of Ireland, is absolutely not acceptable in the world of climate change".
Thomas said we have to decide what we want less of.
"Do we want higher carbon taxes on our fuels for private car use? That will disproportionately affect rural Ireland.
"Do we want less investment in other infrastructure? Do we want less industry?
"This is a zero-sum game," he added.
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