Awareness regarding environmental issues is increasing.
に対する marks the specific target of an attitude, action, or feeling, while に関して marks the general topic being discussed or referred to.
に対する is the attributive form used directly before a noun (子どもに対する態度), while に対して is used before a verb or clause.
Standard modern kanji spelling.
Outdated kanji form using 舊字體; not used in modern Japanese.
Compound of particle に, verb 対する (to face, to be in relation to). The attributive form に対する is used to modify nouns.