WWF Cymru says the Welsh Assembly Government has an important role to play in helping people live within the planet's natural capacity. Our homes, our communities and our lifestyles – what we buy and consume, the energy we use and what we do with our waste, all have an impact on our environment. If everyone in the world lived as we do in Wales we would need three planets to support us.

This summer WWF Cymru will promote its One Planet campaign footprint calculator at key public events. The aim of the online calculator at www.wwf.org.uk/calcuator is to help consumers identify ways in which they can reduce their impact on the environment.

Morgan Parry, Head of WWF Cymru said: "If everyone lived the same way we do in Wales we would need three planets to sustain us. Our over-consumption is leading directly to climate change, species extinction and the collapse of fish stocks. We can solve this problem by moving to different - but better, healthier and happier - ways of living which we call One Planet lifestyles."

Many Assembly members and party leaders joined the event they included Lorraine Barrett, Labour AM for Cardiff South and Penarth; Mick Bates, Liberal Democrat AM for Montgomeryshire; Peter Black, Liberal Democrat AM for South Wales West Region; Nick Bourne, Leader of the Conservative party; Rosemary Butler; Labour AM for Newport West; Jane Davidson; Minister for Sustainability and Rural Development; Paul Davies, Conservative AM for Pembrokeshire; Janice Gregory; Labour AM for Ogmore; Mark Isherwood; Conservative AM for North Wales region; Irene James, Labour AM for Islwyn; Darren Miller, Conservative AM for Clwyd West; Rhodri Glyn Thomas, Plaid Cymru AM for Carmarthen East and Dinefwr; Joyce Watson; Labour AM for Mid and West Wales region; Brynle Williams, Conservative AM for North Wales region and Leanne Wood, Plaid Cymru AM for South Wales Central region.