Deborah Ellis is one of many authors who writes fantastic books about issues that relate to children all over the globe. Consider finding a fiction book related to the issue you are studying.
Once you choose your issue and region, you'll need to search for additional websites. These sites might help you choose an issue and region and give you information on the issue you choose.
Country Reports requires a user name and password even at school. Use the standard ASD database user name and password.
The library has several books on sustainability. Check out the resource list in the library catalog called Global Issues - Sustainability.