What possible role might you have as a scientist or engineer in responding to this GC?

1) Which Grand Challenge (GC) is initially most interesting to you? (2) Why do you find this GC this interesting? and (3) What possible role might you have as a scientist or engineer in responding to this GC? Your reflection should be a couple of brief paragraphs (about 200 to 300 words) in length.
you can use any GC from the pic
and write about it