The phrase "a compelling reason why" is correct and usable in written English.
It can be used when you want to emphasize the importance or necessity of a particular reason for something.
Example: "There is a compelling reason why we should invest in renewable energy sources: they are essential for combating climate change."
Alternatives: "a strong justification for" or "a persuasive argument for".
They help challengers formulate a compelling reason why voters should change presidents.Here Mr Gephardt has jumped ahead.
NAME WITHHELD,NEW JERSEY Unless an assignment is meant to assess a student's writing skills, I cannot think of a compelling reason why you should not offer help.
In this case, there is a compelling reason why states should be allowed to prevent late changes to the roster of candidates listed on their official ballots.
Individually, students create an advertisement encouraging American citizens to vote by targeting a specific group of potential voters with a compelling reason why they might not vote.
By Robert Armstrong Everton have failed to beat Liverpool on five occasions this season, so there is hardly a compelling reason why Howard Kendall's players should clinch the League Championship by winning the Merseyside derby at Anfield today.
There must have been a compelling reason why Disney opted not to postpone the 22 January rerelease when Avatar's lock on the nation's 3D screens became evident, but it has not been disclosed.
"I don't know of any evidence or any compelling reason why a successful sports team would attract employers to a city".
However, Amazon has a lot of algorithmic nouse and I can't see a single compelling reason why it can't do better, both than TripAdvisor but also than its current hamfisted deletion of all book reviews by authors.
There needs to be a very compelling reason why we would consider extending any visiting scholar appointment beyond the 2nd year.
Since the disappointing months after Google's initial public offering in August 2004, when the shares appeared to have been overpriced at $85, they had risen inexorably, without anyone providing a particularly compelling reason why.
