In just two months, Z's 'Waste Warriors” competition has diverted 191 tonnes of waste away from landfill – the equivalent of two Olympic sized swimming pools full of waste.

The annual nation-wide competition is designed to help Z's service station teams become more aware and motivated to reuse, recycle and compost.

This year's Waste Warriors winner, Ashleigh Atkinson and her team from Z Rangiora.

Leading the charge was this year's Waste Warriors winner, Ashleigh Atkinson, and her team from Z Rangiora, who recycled 87 per cent of their waste over the course of the competition.

In second place was Z Palmerston, and Z Te Puke came in third, recycling 84 per cent and 83 per cent of their waste, respectively.

Z's Sustainability Manager, Gerri Ward, says that when it came to sustainability, long-lasting behavioural change was what was really needed to make a difference.

'At Z we want to do the right thing by New Zealand, so we've made a serious commitment to moving from being part of the problem to being at the heart of solutions around sustainability.

'One of the things we've been focused on has been to cut the waste sent from our service stations to landfill by 70 per cent.

'We found that there were already a few people within our retail service station network who were really taking the lead on engaging site staff to try and attain our 70% reduction goal with gusto.

'We decided to tap into this experience across our network, and leverage our retailers and site teams' keen sense of competition to get them into action on the ground, where it matters most,” says Gerri.

Over a two month period Z service station sites compete against each other to reduce the amount of waste they send to the landfill, each team led by a sustainability champion within the team vying to be named this year's Waste Warrior.

This is the second year the competition has run and 54 Z stations joined in.

Gerri says New Zealanders can learn a lot from the success of the Waste Warrior programme and the need to transform behaviours if we are going to make a real difference.