TY - JOUR N2 - Climate change is changing the Earth and changing people. They have the importance of an existential catastrophe. We are in their initial phase. It is uncertain whether they can be stopped or reduced, but it is certain that the process of change has already begun. It has also not been established whether their source is man or the causes are in the very nature of the planet and the cosmos. In any case, human activity matters, and therefore his, or our, responsibility. Next to this, i.e. counteracting, the issue of defense against increasing threats is no less important. This defense has to be started now and it covers a number of activities and areas of social life. The article defines them. L1 - http://publikacje.pan.pl/Content/116683/PDF-MASTER/16Koz%C5%82owski.pdf L2 - http://publikacje.pan.pl/Content/116683 PY - 2019 EP - 245 KW - security KW - economy KW - climate KW - crisis KW - responsibility KW - social bond A1 - Kozłowski, Paweł PB - Warszawa: Komitet Prognoz „Polska 2000 Plus” przy Prezydium PAN, T1 - Our twilight SP - 231 UR - http://publikacje.pan.pl/dlibra/publication/edition/116683 T2 - Czy świat należy urządzić inaczej. Schyłek i początek ER -