Ecology is not a trend. It is one of the most relevant issues for designers and those who hire them. Companies, institutions, NGOs, and politicians increasingly need to position themselves as innovative and environmentally friendly. Whether or not brands or products can be considered green is decisive to their success on the market. A wide range of target audiences need to be sensitized to and convinced of the value of a more conscious lifestyle. Because the traditional look of environmentalism is out of date and no longer so effective, a new visual language must be found for this topic. Cause and Effect is a collection of work from around the world that reveals a credible and understandable contemporary visual language for communicating ecology. Its spectrum ranges from campaigns, posters, brochures, and digital media to interventions and guerilla marketing. It utilizes graphic design, information graphics, and illustrations as well as photography to get its message across. The examples in Cause and Effect inspire us and challenge us. They clearly describe far-reaching correlations and complex technical processes. They explain and motivate. Together they serve as an unparalleled presentation of the most significant, intelligent, and entertaining communication measures and proposed solutions for sustainability today.