Just saying, maybe you have one less beer this week and somebody else somewhere in the world gets water if you put the money there instead. Small changes are what change the world. Never doubt your role.
Many people complain about advertisements as an obnoxious way for companies to invade our everyday lives and cram their products down our throats, but that's not all that advertisements are good for. The advertisements on this list are excellent examples of effective advertising strategies for social issue campaigns that let their voices be heard.