Unit Eight Saving Nature. But Only for Man Background Information Definition of environment Environment is the physical surroundings of an organIsm(生物,有机物) or organisms, including biological, physical, and chemical factors. In the case of human ecology (生态学), it also includes social and cultural surroundings Planning g, caring for, and conservation of the human environment both built and natural, have become of increasing concern in recent years. In philosophy, environmentalism stresses the influence of the physical environment on mans development and activities Book two English teaching plan of cuitBook two English teaching plan of cuit 3 Unit Eight Saving Nature. But Only for Man Background Information – Definition of Environment Environment is the physical surroundings of an organism (生物，有机物) or organisms, including biological, physical, and chemical factors. In the case of human ecology (生态学), it also includes social and cultural surroundings. Planning, caring for, and conservation of the human environment, both built and natural, have become of increasing concern in recent years. In philosophy, environmentalism stresses the influence of the physical environment on man’s development and activities