You should choose an environmental policy issue that is of interest to you. It must be an issue that clearly reflects the significance of an environmental policy problem with an international dimension. You may focus on one country but the issue on which you're focusing must have some trans boundary, larger importance.
Your memo should consist of three primary parts:
You will rely primarily on scholarly articles and books, but you will also want to look for current policy discussions in newspapers with an international focus, government white papers on the websites of relevant countries, and policy reports/meeting summaries published by intergovernmental and non-governmental organizations. Be sure to cite your sources in the style/format of your choice.