environment;  circumstance
 link (e.g. in a chain of events);  part (of a plan, campaign, activities, etc.);  monocyclic
 circulation;  rotation;  cycle;  loop
 ring;  band;  ring;  circum-
 one's family (home) background (environment)
 environmental conservation
 vicious circle;  vicious cycle
 (in) the presence of the whole company;  with all eyes filed upon (one)
 one's (living) environment
 annulation;  ring shape;  loop shape
 links;  chain;  shackle;  linking
 natural (physical) environment
 environmental destruction
 environmental problem;  environmental issue
 environmental maintenance;  environmental improvement
 loop line;  (transportation) belt line
 atoll;  circular coral reef
 living environment;  habitat
 Ministry of the Environment
 looking around;  looking about
 surrounding environment;  ambient surrounding;  one's surroundings
 virtuous cycle;  virtuous circle
 creating a (usually favorable) environment
 configuration (e.g. of a computer or file);  user preferences;  system environment;  environment setting
 circulatory system (blood, lymph, etc.)
 loop-line bus;  loop bus;  bus on a circular route;  bus following a circular route
 environmentally friendly;  eco-friendly
 social environment;  social conditions
 Minister of the Environment
 loop line;  circle line;  circle route
 intestinal environment;  microbiome
 moated settlement (Yayoi period)
 endocrine disruptor;  endocrine disrupting-chemicals
 cyclical;  circulative;  recursive
 environmental burden;  environmental load
 setting up an environment;  creation of an environment
 environmental impact assessment
 cardiovascular disease;  circulatory disease
 environmental business;  environment business;  environmental program
 environmental degradation
 global environment problems;  global environmental issues
 environmentally dependent;  environment-dependent
 (material) recycling society;  recycling-oriented society
 Director General of Environment Agency
 environmental technology;  envirotech;  green technology;  greentech
 systemic circulation;  general circulation (of the atmosphere)
 environmental activist;  environmentalist
 global environment conservation;  global environment preservation
 circum-Pacific volcanic belt;  Ring of Fire
 water cycle;  hydrologic cycle
 surrounding seas;  surrounded by the sea
 environmental tax;  green tax
 United Nations Conference on the Human Environment
 extremophile;  organism that thrives in extreme conditions
 environmental engineering
 environmental criminology
 circumzenithal arc;  cicumzenith arc
 platform-dependent character
 funds flow;  transfer of funds
 sexual harassment from colleagues in the work environment
 circulatory system (blood, lymph, etc.)
 (Japanese) Natural Conservation Law (1972)
 environmentally friendly;  eco-
 umwelt;  self-centered world
 outer ring road;  orbital road
 environmental practice;  environmental practices
 Act for Establishing a Recycling-Oriented Society
 recommended system requirements (software)
 United Nations Environment Programme (Program);  UNEP
 Trans-Pacific Partnership;  Trans-Pacific Strategic Economic Partnership Agreement;  TPP
 investment climate;  investment environment
 system requirements (i.e. recommended hardware and software to run a package)
 Declaration of the United Nations Conference on the Human Environment (Stockholm, 1972)
 atmospheric general circulation
 United Nations Conference on the Human Environment
 Distributed Computing Environment;  DCE
 DCE;  Distributed Computing Environment
 cyclic compound;  ring compound
 Annelida (phylum of ringed worms)
 United Nations Conference on Environment and Development
 (minimum) system requirements
 open systems interconnection environment
 message handling environment
 Integrated Development Environment
 Global Change Observation Mission;  GCOM
 toroidal core;  endless core
 round-trip transaction;  round-tripping
 United Nations Environment Program;  UNEP
 environmental carrying capacity
 System for Prediction of Environmental Emergency Dose Information;  SPEEDI
 environmental administrator
 Council of Ministers for Global Environment Conservation
 online processing environment
 Application Development Environment;  ADE
 outer ring road;  orbital road
 CAE;  Common Application Environment
 CDE;  Common Desktop Environment
 Trans-Pacific Partnership;  Trans-Pacific Strategic Economic Partnership Agreement;  TPP
 left ventricular assist device;  LVAD
 Minister of the Environment
 ambient reflection coefficient
 ball-and-ring method;  ring-and-ball test
 polycyclic aromatic hydrocarbon;  PAH
 circum-Pacific seismic zone;  circum-Pacific earthquake belt
 ring inversion;  ring flip
 environmental impact statement
 hydrologic cycle;  water cycle
 Pan-Pacific concept;  Pacific Rim concept
 Trans-Pacific Partnership;  Trans-Pacific Strategic Economic Partnership Agreement;  TPP
 Trans-Pacific Partnership;  Trans-Pacific Strategic Economic Partnership Agreement;  TPP
 heterogeneous environment
 environmental degradation
 hot springs bath with simulated natural water supply and drainage;  closed-loop hot springs bath
 environmental responsibility
 environmental carrying capacity;  environmental acceptable limit;  environmental assimilating capacity;  environmental capacity
 end-around shift;  cyclic shift
 signet ring (in medical contexts, e.g. signet ring cell)
 computing environment characterized by "ubiquitous computing"
 clasp or ring for attaching a pendant to a chain
 Newton's rings (interference pattern seen when a convex lens is placed on another surface)
 Artinian ring;  Artin ring
 Artinian ring;  Artin ring
 fairy ring;  mushroom ring
 Hadley circulation;  Hadley cell
 Ferrel cell;  Ferrel circulation
 enterohepatic circulation