Nor the Jews and Christians or intellectual fathers of modern times – Descartes, Bacon, Spinoza and others – can be blamed for the environmental crisis. They were only the spokesmen of our white, wildest, scientifically and technically best developed civilization causing the crisis itself. Christianity as one of its components came through all stages of its development, they stimulated it and vice versa. So it takes part in the crisis. The author documents it in the enlightened in Slovakia strongly influenced by Christianity. It fought against superstitions, prejudices and believes in wonders and it proclaimed that people must help himself. And it was based on consideration and knowledge of nature that was given to a man by God in order to be happy also on the Earth. The wrong side of these noble and generous efforts characterizing both the Theistic and Deistic branch of enlightenment was the fact, that also the believing modern man, helping himself from the misery and diseases of the Middle Ages, prepared the present environmental crisis. The man, unacquainted with consequences of his acts prepares together with good also evil, and Christianity is in this case not an exception.