"Don't Litter" campaigns have been around forever. The sad truth is that many people are desensitised by their message because they hear it so often. In order to make powerful anti-litter posters, you have to send a different message that makes an impact. Don't just tell the reader that littering is bad; tell them why it's bad. If your litter poster makes the reader view litter in a different way, chances are it will make a difference.
Many people don't actually think about the earth they walk on day in and day out. Therefore, it is important to use a litter poster to open their eyes. A good anti-litter poster will humanise earth. One way to do this is to make earth into a cartoon head with a pained expression on his face. A tiny figure can be seen on top of the earth's head, and a zoomed in cartoon can show that this tiny figure is littering. A conversation bubble can even be drawn that says, "Ouch!" The caption and the top can read, "Please, don't hurt earth." This type of poster will be especially effective for younger children, who will remember the visual image.
When it comes to "Don't Litter" campaigns, spreading knowledge is vital. Many people don't know the effects that one plastic cup has. A litter poster can be made that outlines the amount of time that it takes different items to decompose. For instance, one line can read "One aluminium can takes 200 to 500 years to decompose." One poster can be made with a list of different items, or a poster campaign can be created, dedicating each poster to a different item. Use a historical fact to make it clear how long the time period really is. This will help the facts really take root in the mind of the reader.
Using the litter facts in the above example, a littler poster can be made that depicts what the earth will look like in 30 years if everyone throws their trash on the ground. Pictures can be taken of earth from a space view, overtaken by trash. Pictures can also be generated of parks and oceans, filled with trash, with children trying to wade around it. Though, it's truly a depressing image, it will be eye catching and memorable to anyone who reads it.
Litter and Animals
Litter posters can also appeal to the animal lovers of the world. A poster can be used to explain that animals are lured into the street by fast food bags tossed out the window, or how they are injured by broken glass in the street. These posters should be tasteful, but also get the point across so that they elicit a reaction.