The phrase "a fiercely debated issue" is correct and usable in written English.
It can be used to describe a topic or subject that is the focus of intense discussion or disagreement among people.
Example: "Climate change remains a fiercely debated issue among scientists and policymakers."
Alternatives: "a hotly contested topic" or "a strongly disputed matter".
Their role in the future is now a fiercely debated issue in the political arena.
At some point, they admit, that may need to change.Whether to offer face-to-face advice is, in fact, a fiercely debated issue among financial institutions that target the mass affluent.
Although the site had been excavated before, Dr. Burley, of Simon Fraser University in British Columbia, made a new and revealing discovery concerning a fiercely debated issue in archaeology: the origin and migration routes of the Polynesians.
Native language education has remained a fiercely debated topic in Taiwan into the 21st century, and is the subject of much political wrangling.
The evolution of speech and language is still a fiercely debated topic among scientists from various disciplines (Dooling et al. 1995; Hauser et al. 2002; Pinker and Jackendoff 2005; Anderson 2008; Fitch 2010).
On the fiercely debated issue of college access and affordability, Julia believes "the question of employer needs should sit at the core of higher education conversations.
Channel 4 has defended its series, insisting that as immigration is "one of the most fiercely debated issues in Britain today", it is "vital that as a public service broadcast [it] makes programmes about such topics".
In the latest issue of the magazine, Louis Menand tackles a fiercely debated question: Can writing be taught?
By Thessaly La Force June 8, 2009 In the latest issue of the magazine, Louis Menand tackles a fiercely debated question: Can writing be taught?
The shooting of Mark Duggan, a known gangster, which in 2011 started riots across London, led to a fiercely debated inquest.
But the ban itself has become, as Jess Bidgood reported for The Times, a "fiercely debated political flashpoint" with divisions falling along what have become predictable partisan lines.
