This image explains that the lifestyles (and system) that we value are ruining our planet. This touches on the fact that there finite resources and we are living within larger means than we can produce sustainable energy for. This relates to the image of the hourglass in that we are running out of time and resources.
Everyone understands climate change is occurring and the people who oppose it are really hurting our children and our grandchildren and making the world a much worse place. And so we should not be aligned with such people -- they're just lying.