The Haze

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Across
  1. 2. the natural world, as a whole or in a particular geographical area, especially as affected by human activity
  2. 3. the presence in or introduction into the environment of a substance which has harmful or poisonous effects
  3. 5. the magnitude or intensity that must be exceeded for a certain reaction, phenomenon, result, or condition to occur or be manifested
  4. 7. fog or haze intensified by smoke or other atmospheric pollutants
  5. 8. the state of being clear of trees
  6. 13. inhalation and exhalation of air; breathing
  7. 15. contrary to or forbidden by law, especially criminal law
  8. 18. a process in which substances combine chemically with oxygen from the air and typically give out bright light, heat, and smoke; combustion or burning
  9. 19. the state of being free from illness or injury
  10. 20. burn slowly with smoke but no flame
  11. 22. a course or principle of action adopted or proposed by an organization or individual
  12. 23. a visible suspension of carbon or other particles in air, typically one emitted from a burning substance
  13. 24. a time of intense difficulty or danger
Down
  1. 1. performed an act, usually with a negative connotation
  2. 4. a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question
  3. 6. continuing with great force or intensity
  4. 9. the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch
  5. 10. a slight obscuration of the lower atmosphere, typically caused by fine suspended particles
  6. 11. the production and discharge of something, especially gas or radiation
  7. 12. the state of the atmosphere at a particular place and time as regards heat, cloudiness, dryness, sunshine, wind, rain
  8. 14. cover or envelop so as to conceal from view
  9. 16. a small area with a relatively high temperature in comparison to its surroundings
  10. 17. matters or situations regarded as unwelcome or harmful and needing to be dealt with and overcome
  11. 21. interrupt (an event, activity, or process) by causing a disturbance or problem