RESUMEN:
Actualmente se está mudando el sentido de lo natural sin ninguna justificación, con la fuerza de los hechos, de la aprobación social, pero sobre todo con el impulso político no precedido de un debate racional. Es el caso, por ejemplo, de los matrimoniois entre homosexuales, de la adopción de niños por gays y lesbianas, del divorcio, de la contracepción, del aborto, eutanasia...

TEXTUAL:
(...) Are there contemporary signs of a renewed interest for the natural law, offering "new prospects" for our societies?

If there are, they are not yet visible. In fact, in the Western world, at least in the public sphere, there is bleeding atrophy of understanding what is natural and what is not, leading to changes in ethical mores that are amounting to a profound revolution of the foundations of civilization. These changes are not taking place in the name of some forceful ideology, capable of mustering the support of crowds -- as was the case with nationalism and communism, both of which had an altruist element within them -- but in the name of pure hedonism and anti-rationalist skepticism, hidden under the mask of tolerance.

There is a rapid decline of appreciation of basic moral truths and of the capacity of seeing what is obvious, in the name of that which is fleeting, ephemeral, and therefore not intrinsically binding. Will the social and political approval of gay marriages, of the adoption of children by gays and lesbians, of divorce, of contraception, abortion, euthanasia, the manipulation of embryos and laissez-faire theories of education finally arrive at the point of total absurdity, causing as a backlash a desperate return to rationality in ethics? We may certainly hope so in our wishful thinking, but for a few generations, the return to moral sanity may turn out to be too late.

FUENTE:
GIERTYCH, Wojciech: 1) Difficulty with question

FUENTE AMPLIADA:
GIERTYCH, Wojciech: "Problems and Prospect" on Natural Law Ed. , Roma, 3000 (2007)