Crossword Genius

Green cannot be rural, oddly (6,7)

Ross

I believe the answer is:

carbon neutral

I'm a little stuck... Click here to teach me more about this clue!

'green' is the definition.
Both the answer and definition are adjectives.
Maybe there's a link between them I don't understand?

'cannot be rural oddly' is the wordplay.
'oddly' indicates anagramming the letters.
'cannot'+'be'+'rural'='cannotberural'
'cannotberural' with letters rearranged gives 'CARBON-NEUTRAL'.

Can you help me to learn more?

(Another definition for carbon neutral that I've seen is " good for climate?".)

I've seen this clue in The Sunday Times.
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