This current research purpose is to develop some environmental dimensions among youth in youth centers through applying a competition program designed by researchers, measuring its efficacy with youth. For achieving this, the researchers expose the programs presented to youth centers which have revealed a shortness of competitions programs in handling with environmental issues. The researchers use the descriptive method and the quasi-experimental method. Also, researchers have designed a program for competitions that include several issues represented in (pollution in its different types – wasting of resources – sustainable development – climatical changes – proper management of solid wastes – the biodiversity). A scale of environmental citizenship is designed consisting of three dimensions (personal responsibility – environmental justice – group work). The competition program has been applied on the research population that consists of (50) male/female young people aged (18-25 yrs. Old), members in Al-Jazira Youth Center. The study tools are embodied in: scale of Environmental Citizenship (by researcher) and a pre/post application of the tools are used to prove the program's efficacy.
  The results indicate the following: There are significant statistical differences between average scores of youth of the experimental group at (0.05) significance level on environmental responsibility dimension pre/post application of the competition program, in favor of the post application for the experimental group that has received the competition program. There are significant statistical differences between average scores of youth of the experimental group at (0.05) significance level on group work dimension pre/post application of the competition program, in favor of the post application for the experimental group that has received the competition program. There are significant statistical differences between average scores of youth of the experimental group at (0.05) significance level on environmental justice dimension pre/post application of the competition program, in favor of the post application for the experimental group that has received the competition program.