This is the 3737th most frequent Portuguese word.
ambientais
"Ambientais" means "environmental" in English.
In this sentence, "ambientais" is used as an adjective modifying "problemas," indicating that these problems are related to the environment.
Os problemas ambientais exigem soluções urgentes.
Environmental problems demand urgent solutions.
Here, "ambientais" describes "políticas," signifying that the policies are concerned with environmental matters.
As políticas ambientais podem ajudar a preservar a natureza.
Environmental policies can help preserve nature.
In this case, "ambientais" modifies "impactos," showing that the impacts pertain to environmental aspects.