17. A computer program product for implementing an environmental chat in a virtual universe, the computer program product comprising: a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code configured to, determine a number of avatars in an area of the virtual universe associated with the environmental chat associated with an avatar; determine a chat distance associated with the environmental chat associated with the avatar based on the number of avatars in the area of the virtual universe associated with the environmental chat, wherein the chat distance is inversely proportional to the number of avatars; and modify the chat distance in response to detecting a change in the number of avatars in the area of the virtual universe associated with the environmental chat.
17. A computer program product for implementing an environmental chat in a virtual universe, the computer program product comprising: a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code configured to, determine a number of avatars in an area of the virtual universe associated with the environmental chat associated with an avatar; determine a chat distance associated with the environmental chat associated with the avatar based on the number of avatars in the area of the virtual universe associated with the environmental chat, wherein the chat distance is inversely proportional to the number of avatars; and modify the chat distance in response to detecting a change in the number of avatars in the area of the virtual universe associated with the environmental chat. 18. The computer program product of claim 17 , wherein the computer readable program code configured to modify the chat distance in response to detecting the change in the number of avatars in the area of the virtual universe associated with the environmental chat comprises the computer readable program code configured to modify the chat distance from a first chat distance to a second chat distance in response to detecting the change in the number of avatars in the area of the virtual universe associated with the environmental chat from a first number of avatars associated with a first range of number of avatars to a different number of avatars associated with a second range of number of avatars.