What are some current global issues?

Okay so like I have to do a PowerPoint slide show on a current global social issue. It has to be related to political, economic, cultural, structural, ecological, environmental, demographic, or technological change. I just need a start. I am taking sociology and its kind of confusing. I will do all the needed research, I just need some ideas as to where to begin. Thanks, oh yeah, Id love to know why you chose what you chose, like the pros and cons in your opinions. Thanks again!!