The mark consists of the top half of planet earth with two arrows coming out of the left and ride side containing chemical compounds which include CO2, CH?, and N?O. There are also two arrows criss-crossing in the middle of planet earth with a rectangle attached to a semi circle in the background. The top half of the mark consists of a semi circle containing 6 sections of pictures. Starting from left to right: section one includes wilted plants coming out of cracked soil with a sun in the background; section two includes a pair of lungs with magnifying glasses on each lung containing the word OZONE and a picture of cells; section three includes a cloud with lighting and wind blowing at a tree; section four includes a triangle with an exclamation point. The section also contains a thermometer with half a sun connected on the left side; section five includes a stream of water with two sets of fish bones; section six contains a house in a current along with a graph including a current and an arrow point up.