Everyone - and every sector of the economy - is going to have to do more to meet emission targets, as farmers are doing less.

That's according to Newstalk Breakfast host Ciara Kelly, who has criticised the targets announced on Thursday.

She says other sectors will pay the price for agriculture's low goals.

"Agriculture accounts for almost 40% of our emissions - they've agreed to cut by 25%, or at least that's their target now.

"But the target for other sectors - 75% for energy, 50% for transport, 45% commercial for buildings, 40% for residential buildings and 35% for industry in general - agriculture has got off lightly.

"The fact that they have got off lightly has put pressure on every other sector.

"I don't know if any of these targets are achievable, frankly.

"But certainly with such a large chunk of our emissions being cut by a relatively small amount - not even 30% - and we're supposed to hit 50%, I don't know how any of this is done."

She believes the targets for other areas are unlikely to be achieved.

"Residential is supposed to cut by 40% - you'd want to be retrofitting every second house to get anywhere near that.

"Energy 75% - we'd want to have wind farms all over the western seaboard, and pronto, and I don't know how that's going to happen.

"And transport by 50% - that's going to affect all of us.

"All of us are going to have to do a little bit more I think - dare I say it - because farmers are doing a little bit less.

"And if one sector pushes back and kind of gets leeway, what's to say all the other sectors won't push back as well?", she adds.