Ask HN: What are the most burning problems of the next decade?

Hi, I am in my late twenties and was wondering how can I maximize my positive impact by inquiring:

What do you think are the most important issues bothering the world which should be addressed within the next decade?

What is the most impactful thing a person with a CS degree can do to address one of these problems? (Personally I am mostly interested in data science and engineering but other sub fields of CS are more than welcome)

I encourage you to join the discussion and hope this thread will get a lot of attention because the more opinions the better. I believe a certain style of a reply to my question consisting of a pair problem-solution is preferable but feel free to use a different style should you wish.