Green' is the word that both individuals and groups in the world focus. Green ICTs is also now stated to be one of strategic technologies because of their benefits in terms of decreasing expenses, creating good corporate image, and mitigating climate change from greenhouse gas emissions. However, the acceptance and use of green ICTs are still not prevalent, especially in the developing countries where poverty and growth problems have to be remedied first. Cooperation among all countries is important to perfectly solve the problems. Young generations in particular are important forces to cope these problems. Therefore, by using the case of university freshmen in Thailand, the study's objectives are to investigate the awareness and the acceptance of children on green ICTs, to explore the knowledge that they have regarding to the green ICTs, and, to search causes of green ICTs? acceptance or rejection. The results from the study are expected to support building the green ICTs usage in youths.