not only to ; sentence. Is it grammatically correct?

I'd go with co-workers.
Modern grammatical changes are doing away with hyphenations, but it's your shout
Co-operation is now cooperation.
I'm a hyphenator, myself - And They'll never stop me!!!

Mark, he wasn't asking about the hyphen.

This first sentence is fine. It does not need altering.


This alternative formulation is also fine.



The section I have highlighted in red is a 'comma-separated list'. Commas should separate all except the penultimate and final items, which are usually separated by 'and', 'or or 'nor''. Thus it should be written thus:

societal values, conservation politics, scientific understanding, and ever-increasing human environmental impacts.

Note that the serial comma after 'understanding' is optional - there are two alternative conventions:

1. The Oxford or Harvard comma is a serial comma or series comma placed immediately before the coordinating conjunction (usually and, or, or nor) in a series of three or more terms:

I like apples, pears, and oranges.

Many, but not all, North American English style guides consider it mandatory.

2. The Cambridge comma: the final serial comma is omitted unless necessary to avoid ambiguity.

I like apples, pears and oranges.

Many, but not all, British English style guides recommend the Cambridge convention, notable exceptions being those produced by Oxford University.

Sometimes it is difficult to avoid ambiguity without splitting the list: The London "Times" newspaper once published an unintentionally humorous description of a Peter Ustinov documentary, noting that "highlights of his global tour include encounters with Nelson Mandela, an 800-year-old demigod and a dildo collector." This would still be ambiguous if a serial comma were added, as Mandela could then be mistaken for a demigod, although he would be precluded from being a dildo collector.

You sure?
He certainly altered 'coworkers' to 'co-workers'.

Well, hyphenation of compound nouns is optional these days, but it is not yet incorrect, and unlikely to become so.

Agreed - But do you prefer 'coworkers' over 'co-workers'?
Communication is the point, I guess.
I just see 'coworkers' as a kinda cow-worker derivitive.

I prefer co-workers.