IPA: /nɒnˈpəluːtɪŋ/
KK: /nɑnˈpəluːtɪŋ/
Something that does not cause pollution and is good for the environment.
Using nonpolluting energy sources helps protect our planet.
Nonpolluting → It is formed from "non-" (meaning not) and "polluting" (from Latin "polluere", meaning to make dirty or to pollute). The word "nonpolluting" describes something that does not make the environment dirty or contaminated.
Think of 'not' ('non-') causing 'dirtiness' ('polluting') — that's why nonpolluting means something that does not pollute.