The phrase "additional controversies" is correct and usable in written English.
It can be used when discussing more than one controversy that is being added to a previous list or context.
Example: "The report highlighted several additional controversies surrounding the new policy changes."
Alternatives: "further disputes" or "more conflicts".
Thus, comparison of clinical trial results has been challenging, and additional controversies persist regarding optimal chemotherapy regimens, duration of therapy, and the role of radiotherapy.
Colleges have seen additional controversies around racial issues in just the last week.
In 2010, additional controversies surfaced regarding the posting and enforcement of speed limits on city streets in Michigan, including the streets that make up the Capitol Loop.
This film doesn't need any more buzz than it's already been getting, so they don't need to create additional controversies simply for to get people talking about the film.
Additional controversies have hit Wells Fargo since then, including consumer abuses involving its mortgage and auto-loan businesses that drew a record $1-billion 1-billion fineral regulators in April.
There has been additional controversy over the setting up of a state body, the Foundation of French Islam, aimed at better organising the religion in France and integrating the country's Muslim population.
Additional controversy surrounds mechanisms and the causes of annual variation (Boos and Storelvmo 2016; Levermann et al. 2016).
Predictably, some scientists expressed disagreement with the interpretation of the fossil's features, but additional controversy surrounds the provenance of the fossil — and Martill's comments on the fossil protection laws that make its provenance important.
There is additional controversy surrounding the voting site.
However, yesterday's nomination is imbued with additional controversy for two reasons.
Additional controversy developed after the battle about Pickett's personal location during the charge.
