The 2014 Commonwealth Games has the potential to be the most sustainable sports event ever, its director said.
Mr Casey appealed for ideas on how to make the games sustainable
Derek Casey, interim chief executive of the 2014 Games, said the event could leave a "very positive environmental legacy" to its host city, Glasgow.
Brownfield sites would be used for new venues and organisers are committed to using sustainable materials and recycling, he said.
Mr Casey was speaking at the Ramblers' Association Scotland annual conference.
He said: "Scotland is gaining a global reputation as a country that can host big events like the Commonwealth Games, the Ryder Cup, and large-scale conferences.
"I believe there is capacity for our environmental record to shine as well."
Mr Casey appealed for ideas on how to make the games environmentally friendly.
"For real innovation to happen we need individuals, the public and the private sector to share their ideas with us so that we truly can be an example of good environmental practice," he said.
He claimed organisers had shown a commitment to the environment in planning the event, with plans detailed in the bid document to deliver a low carbon games.
Mr Casey urged members of the public to share their ideas by responding to the Scottish Government's consultation paper - Glasgow 2014: Delivering a Lasting Legacy for Scotland - which was launched in February.
He said: "What I want to see now is much more public engagement on events and the environment.
"The Games are not purely about sport - we have a once-in-a-generation opportunity to make the Commonwealth Games as sustainable and responsible as they can be."
Dave Morris, director of the Ramblers' Association Scotland, said: "The Glasgow Games can set the Gold Standard for placing environmental quality alongside sporting excellence.
"Our generation and those to come will expect Glasgow and Scotland to rise to the challenge."