I really like how the Surfrider Foundation have represented the effects of plastics in the ocean. Showing the plastic in sushi which is sea food to represent the ocean I think is a clever and very creative way to grab people's attention.
The Real Carbon Tax by - Christopher Sousa Ebels, Australia - "A poster serving to remind people of the continuing impact we all have by the simple act of plugging in. Renewable energy is something we can't procrastinate or ignore.
Make friend with your garden. Hand holding, be Environmentally Friendly. A simple idea inspired by the relationship between human beings and respecting their environment, mother earth & the eco-system.