Focused on the measures against CO2 for preventing the global warming which is one of the important environmental issues, the present survey was extensively made on the technical trend of R and D in progress by private firms, related organizations and universities for the environmental measures, together with their basic concept of future R and D. Through the present study, the necessary task was elucidated for effectively performing the global environment-related R and D. Based on the seeds and needs for the above R and D by private firms, the technical outlook was also elucidated for the future R and D to organize the preservative measures for the global environment. The present report more specifically exhibited the following matters: technical outlook for the future development of all environment-related technologies as well as their present status. Status and trend of grappling by private firms with the technical development and other environmental issues. Tasks necessary for the above grappling. Questionnaire survey result from private firms. Tasks and solving measures for promoting the technical development by private firms for the environmental issues of the globe. 6 figs., 4 tabs.