dead zones
Where nothing thrives
Dead zones are areas where something essential is absent or inactive.
In oceanography, dead zones are regions where oxygen levels have dropped too low to support marine life: Agricultural runoff has created a massive dead zone in the Gulf of Mexico.
In telecommunications, a dead zone is an area with no cell signal.
The term extends to any space where expected activity or coverage fails: The conference room is a WiFi dead zone.
Absence of oxygen supply
- suffocationFatal lack of air
- deoxygenationRemoval of oxygen
- anoxicLacking molecular oxygen
- hypoxicInsufficient oxygen supply
stratification · stagnation · dissolved oxygen · fish kills · mass mortality · seafloor · Gulf of Mexico · Chesapeake Bay
Mass aquatic animal deaths
- mass mortalityWidespread simultaneous deaths
- habitat lossElimination of living spaces
- ecosystem collapseTotal breakdown of environmental systems
- biodiversity lossReduction in species variety
lifeless · migration · avoidance · recovery · restoration · monitoring
Rapid water plant overgrowth
- nitrogenElement seven, colorless gas
- phosphorusGlow-in-dark element
- runoffExcess water drainage
- fertilizersSubstances enriching soil
agricultural runoff · red tide · cyanobacteria · overfertilization · nitrates · phosphates · sewage · decomposition
Water draining from farmland
- land useHow terrain is allocated
- deforestationLarge-scale woodland elimination
- urbanizationPopulation shift toward cities
- climate changePlanetary atmospheric transformation
ocean warming · population growth · intensive farming · feedlots · wastewater · stormwater · impervious surfaces
Communication link absent
- coverage gapsUninsured risks in plans
- receptionAct of receiving guests
- connectivityState of being linked
- blind spotsUnperceived areas of awareness
dropped calls · interference · weak signal · roaming · rural areas · underground · basements · elevators
anoxia
Absence of oxygen supply
- suffocationFatal lack of air
- deoxygenationRemoval of oxygen
- anoxicLacking molecular oxygen
hypoxic · stratification · stagnation · dissolved oxygen · fish kills · mass mortality · seafloor · Gulf of Mexico · Chesapeake Bay · Baltic Sea
fish kills
Mass aquatic animal deaths
- mass mortalityWidespread simultaneous deaths
- habitat lossElimination of living spaces
- ecosystem collapseTotal breakdown of environmental systems
biodiversity loss · lifeless · migration · avoidance · recovery · restoration · monitoring
algal blooms
Rapid water plant overgrowth
- nitrogenElement seven, colorless gas
- phosphorusGlow-in-dark element
- runoffExcess water drainage
fertilizers · agricultural runoff · red tide · cyanobacteria · overfertilization · nitrates · phosphates · sewage · decomposition · organic matter
agricultural runoff
Water draining from farmland
- land useHow terrain is allocated
- deforestationLarge-scale woodland elimination
- urbanizationPopulation shift toward cities
climate change · ocean warming · population growth · intensive farming · feedlots · wastewater · stormwater · impervious surfaces
no signal
Communication link absent
- coverage gapsUninsured risks in plans
- receptionAct of receiving guests
- connectivityState of being linked
blind spots · dropped calls · interference · weak signal · roaming · rural areas · underground · basements · elevators · tunnels
- internetinternet, websites, web, browsers, web browsers
- oceanwaves, Atlantic, sea, Pacific, tide
- environmental harmair pollution, water pollution, pollution, oil spills, acid rain
- Environmental problemsair pollution, water pollution, climate change, global warming, habitat loss
- cell phone serviceVerizon, AT&T, T-Mobile, Sprint, Vodafone
- Eco-crisesclimate change, global warming, oil spill, deforestation, biodiversity loss
dead zonesliving waters
Spiritually sustaining divine flow
biodiversity hotspots · coral reefs · spawning grounds · marine sanctuaries · kelp forests
dead zonespristine environments
Ecosystems in original condition
marine sanctuaries · protected waters · sustainable fisheries · conservation areas
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