This is a collaborative assignment that can be used as a summative assessment or as a group project. In this project groups of students are given different ecosystems to study. They need to work together to create food webs and trophic pyramids for their particular ecosystem. Halfway through the project something terrible happens to their ecosystem (based on real, current issues) and students will need to figure out the ecological impact of such a disaster. As a team, students will write a proposal to the government with their suggestions on how to make their ecosystem healthy again.