There are three criteria set by the IB which your chosen Global Issue must meet:
It has significance on a wide/large scale.
It is transnational.
Its impact is felt in everyday local contexts.
Reminder: From the IB, ‘any combinations of texts and global issues used for practice will not be available for any student for the real individual oral.’
We will explore GIs as we study our texts. As it is entirely up to you which literary work and non-literary BoW you choose, each time we explore a text, we will have a moment in our study to consider which GIs are present and how they are presented.
Before the mini-IOs we will do throughout G11 and the mock IO we do in G12, you will submit your GI for approval. We will also have a 1-2-1 discussion about your choice so you can justify how it meets the three IB criteria.
You could. But it is unlikely you will have exactly the same wording. You cannot, however, choose the same extracts.
Start with the UN. The Sustainable Development Goals and page on Global Issues may inspire you. InThinking has information too. Not all global issues are problems. Have a look here for inspiration: https://simplicable.com/new/human-experience
Your GI can be broad, such as the oppression of minorities. Then you would narrow it down in your introduction to how oppression is demonstrated in the literary work and non-literary BoW, such as the oppression through access to education in one text and oppression through religious persecution in another.