The Green Party has taken a swipe at the Labour Party over its approach to environmental issues.
It was prompted by Labour's rejection of a Member's bill which would have made it harder for companies or councils to discharge pollutants into waterways.
The majority of Parliament's Local Government and Environment committee recommended the bill not be passed.
Green co-leader Russel Norman said the Greens stand up for the environment, but Labour isn't always there alongside them.
The Labour said it could not support the bill as it would have put jobs at risk for minimal environmental benefit.