I've got to write a paper on a Current (present day, ongoing) controversy in science. (So something not agreed on yet)
It can be anything in Science, but it is preferred to be under (geoscience) Earth Science topics (rocks, the earth etc.).
Does anyone have any ideas of a current topic in science that is in disagreement between 2 or more sides?
(for example, 2 sides long ago argued the earth was flat, other said round)