4 horse riders on the shore of the Thames disappear and appear depending on the time of day. The artist, sculptor, and the environmental protector Jason deCaires Taylor created the composition in order to draw the attention of the public to the excessive dependence of people on oil and remind us of how our modern industry affects climate change. Yes, you see it right: instead of heads, the horses have oil pumps. The figures, who are wearing suits and sitting on the horses and looking somewhere, are a direct reference to the politicians and businessmen that take as much as they can carry from nature while ignoring all the side-effects.