The Olympics will be "pretty green", according to Linda Coady, the Vancouver Organising Committee (Vanoc) vice-president for sustainability.
"There had been a target of diverting all extra waste away from landfill, such as by recycling or composting. This has proved impossible, so now that target has been lowered to 85% of the waste. It is too early to say whether this can be achieved.
Ms Coady says they hope their programmes for reducing and offsetting carbon emissions will set a new standard for the Olympic movement.
Her team has been working with a forecast of about 330,000 extra tonnes of carbon.
They expect a third of that to come from their own operations, and two-thirds to be indirect emissions from air travel for the Games. They hope to revise the total forecast down to 300,000 extra tonnes."
But the organizers could be doing a lot more, according to Canadian scientist and environmental activist David Suzuki.