Green Party must get 'serious' about plastic bottles - Casey
European election candidate Peter Casey has criticised Green Party candidates for using plastic water bottles.
Mr Casey said that Green Party members should not be using single-use plastic water bottles if they were "serious" about the green movement.
"This is a protest vote," he said on RTÉ Radio One.
"The environment of course, everyone is concerned about it, we've got global warming, everyone is concerned about it.
"I believe if the Greens are really sincere about the environment, they would tell their members to stop using plastic bottles."
Green Party European election candidate Saoirse McHugh responded to Mr Casey's comments, saying that individual environmental responsibility can go "only so far".
"We need systems, we need top down change; there is only so far personal responsibility and keep cups can get you," she said.
"We do need to address the big polluters and they are the big businesses.
"And that is the reason why I would be worried that we are not really looking at the scale of this.
"It's not just going to be: don't use plastic bottles," she added.