This is a sad article about capybaras living in polluted urban streams in Brazil. We certainly have a similar situation here and raccoons have adapted pretty well, but that doesn’t make it right. The article is in Portuguese, but it translates well enough online so that you can understand the issues.
Here is a link to the article in Portuguese:
Cadê a capivara, o jacaré e a lontra que estavam aqui? – Vida e Meio Ambiente – O Dia.