Geoff Green took the high school students to one end of the world. to provide them the opportunity to develop the respect and understanding for the earth. He wanted to make the future policymakers to experience how difficult it would have been for the earth to sustain life by rising its temperature. He wanted them to understand that any interference in nature can cause drastic mishappenings in the future when the students see the ice shelves melting and collapsing, they can estimate the kind Of environmental troubles ahead in their future.