The phrase "a backdrop of heightened" is correct and usable in written English.
It can be used to describe a situation or context that is characterized by increased intensity or significance, often in relation to emotions, tensions, or events.
Example: "The negotiations took place against a backdrop of heightened tensions between the two countries."
Alternatives: "an environment of increased" or "a setting of intensified".
What's made things even more combustable this year is the fact the diversity debate is taking place in a backdrop of heightened racial tensions in the US after a string of high profile police shootings of unarmed black men.
There are early signs that the important US defence environment is stabilising and might return to growth next year (but could take time to feed through) against a backdrop of heightened geopolitical strife.
This has seen European equities fall once again as the New Year remains challenging for investors, against a backdrop of heightened geo-political tensions, global growth concerns and continued pressure on commodity prices.
However, Hawes said growth was likely to slow in 2015 against a backdrop of heightened uncertainty in the UK.
The move comes against a backdrop of heightened tension between the west and Moscow, following Vladimir Putin's decision to launch airstrikes in Syria.
Erdoğan's move comes against a backdrop of heightened violence between Turkey's security forces and militants belonging to the outlawed Kurdistan Workers' party (PKK) and its radical offshoots.
For the foreign companies that do make it in, they are often pitted against local companies as the non-Chinese option — no small detail against a backdrop of heightening nationalism.
The latest abduction came against a backdrop of sharply heightened tensions between Syria and Israel in recent days.
All are expected to hold monetary policy steady against a backdrop of caution heightened by the global impact from a possible Brexit.
His remarks came against a backdrop of already heightened American tensions with Pakistan, since Adm. Mike Mullen, the just-retired chairman of the Joint Chiefs of Staff, told a Senate panel last month that the Haqqani network, a potent part of the insurgency battling American forces in Afghanistan, was a "veritable arm" of Pakistan's spy agency.
The Protestant parades, which drew about 30,000 marchers, took place against the backdrop of heightened sectarian violence in Belfast.
