The phrase "about a cascade of" is correct and usable in written English.
It can be used when discussing a series of events or phenomena that occur in succession, often implying a chain reaction or overwhelming effect.
Example: "The report highlighted concerns about a cascade of environmental issues resulting from climate change."
Alternatives: "regarding a series of" or "concerning a flow of".
The second is to explain how medial diencephalic pathology can bring about a cascade of pathological changes that are sufficient to disrupt memory permanently.
After weeks of scalding revelations about a cascade of leads and warnings prefiguring the 9/11 attacks that were ignored by the U.S. government, the president created the Department of Political Security.
"We're talking about a cascade of dams that will fundamentally alter the ecosystems and resources for downstream communities that depend on the river," said Katy Yan, China program coordinator at International Rivers, an advocacy group.
But politics in Pakistan is about a cascade of favours from the most powerful patrons – in this case the ex-cabinet minister candidate – to the lowest – a small trader, bureaucrat, cleric or farmer who is influential in a street or village.
Banks have complained about a cascade of spurious claims.
Her sudden disappearance comes just two days after she pondered on the air why everyone was making such a big deal about blackface, prompting a cascade of public criticism from her co-workers and boss.
Ding Xueliang, a social scientist at the Hong Kong University of Science and Technology, said Mr. Wang's visit to the consulate — during which American officials say he revealed damaging information about Mr. Bo — set off a cascade of events that has convulsed the party establishment.
Fast forward one year, and Trump barely came up during Sunday's ceremony — even though in so many ways, the #MeToo movement includes the president, who has been accused of sexual harassment or assault by more than a dozen women, bragged on tape about groping women, and unleashed a cascade of sexist and misogynistic attacks against his female opponent during the 2016 election.
Then, a few weeks ago, Mr. Savage uncorked a cascade of invective about Islam.
"This form of analysis just created a cascade of questions about what was the decision making process, what were the criteria used to make judgments.
The troubles have led to a cascade of questions about what changes Theranos might make to rebuild its reputation and business prospects.
