The phrase "an issue of increasing" is correct and usable in written English.
It can be used when discussing a problem or topic that is becoming more significant or prevalent over time.
Example: "Climate change is an issue of increasing concern for scientists and policymakers alike."
Alternatives: "a growing issue" or "a rising concern".
Invasive species have become an issue of increasing concern in recent years.
Improved energy efficiency is an issue of increasing importance in offshore oil and gas installations.
The assessment of biodegradation in contaminated aquifers has become an issue of increasing importance in the recent years.
Your letter (12 March) about the risks associated with the deep cuts in mental health funding highlighted an issue of increasing concern to me.
Simon Evans, chief executive of the Air Transport Users Council, said add-on charges imposed by low-cost airlines were becoming an issue of increasing concern.
Understanding the hydraulics around injection and production wells in unconfined aquifers associated with rainwater and reclaimed water aquifer storage schemes is an issue of increasing importance.
Wideband versus narrowband comes down to an issue of increased capacity and a different emphasis on what is transmitted.
This is an issue of increased interest as there is evidence for changes in QoL, including a more favourable effect of HD treatment on the patients' physical well being over the first year [ 11].
Drainage depth is an issue of increase or decrease in cost of installation and also availability of machineries and labor.
In early talks, the authority made a big issue of increasing productivity by, for example, calling for station agents to empty trash cans and station cleaners to change light bulbs and paint over graffiti.
As a global issue of increasing concern, MDR leads to inadequate treatment and poor prognosis of leukemia patients.
