The phrase "also have a devastating" is correct and usable in written English.
It can be used when discussing the impact or consequences of an action, event, or situation that causes significant harm or destruction.
Example: "The recent natural disasters also have a devastating effect on local economies, leaving many families in distress."
Alternatives: "also have a catastrophic" or "also have a harmful".
It could also have a devastating effect on Afghanistan's struggling economy, which has come to depend on NATO spending.
Sanctions can also have a devastating impact on claimants' ability to look for work, as "the horizons of people who have received a sanction dramatically shrink to focus on the immediate problems of finding the next meal".
The report will also have a devastating effect on the post-graduate training of doctors, and its specific legacy with respect to university education will be the end of postgraduate academic medicine as a realistic career pathway in the UK.
This, they believe, will also have a devastating effect at the bottom of the tree, among those dependent on a fast-moving HMRC to fairly allocate and deal with their benefits.
A Bridgeport casino would also have a devastating impact on air quality -- with pollution becoming so bad it would be tough to comply with acceptable levels of pollution under the Federal Clean Air Act.
Alex Brummer, Daily Mail 11 August 2007 What is clear is that the present reality check for the world's financial institutions could bring to a grinding halt the merger and acquisition boom and the edifice of leveraged buyouts, private equity and hedge fund activity It could also have a devastating effect on the bid by the three amigos, led by the Royal Bank of Scotland, for ABN Amro.
Quincy also has a devastating secret weapon.
Cuts to legal aid are also having a devastating effect on women suffering domestic violence.
The Palestinians also have a reason for concern, because a nuclear strike against Israel would devastate them as well.
(District manager) "…if you have a devastated facility even getting clients there might be difficult.
The Act will also have an impact on the troubled Caribbean island of Montserrat, recently devastated by volcanic eruptions which made much of the island uninhabitable.
