There're too many canvas bag with environmental concept in the market. I have one canvas bag free from magazine. It say "plastic bag is out" on the bag but do you know the packaging of the canvas bag is PLASTIC BAG.
When you manufacture something, it  takes  natural  resources and energy. Absolutely it releases waste and pollution. If you say you are environmental friendly people. You much stop manufacturing, stop making waste, stop over consume, stop producing "not plastic bag".

http://www.bringyourownbag.ca