depletion

exhaustion

State of utter depletion

• extractionAct of removing
• overconsumptionExcessive use of resources
• overexploitationExcessive resource depletion

drawdown · overfishing · deforestation · aquifer · groundwater · mineral · reserves · stockpile · finite · nonrenewable

shortage

Deficient supply of necessities

• dearthAcute shortage of something
• insufficiencyShortfall in amount needed
• deficitAmount still owed

lack · want · paucity · famine · drought · privation · undersupply · unavailability · rationing · starvation

deficit

Amount still owed

• lossBeing without something
• declineDecrease or refuse
• downturnEconomic decline period

recession · debt · shortfall · reduction · depreciation · erosion · drain · hemorrhage · capital flight · disinvestment

fatigue

Weariness from prolonged exertion

• exhaustionState of utter depletion
• burnoutChronic occupational depletion
• tirednessState of needing rest

weariness · drained · spent · sapped · enervated · lethargy · weakness · collapse · prostration · debilitation

ozone

Triatomic oxygen allotrope

• biodiversityRange of life forms
• habitat lossElimination of living spaces
• soil erosionLoss of topsoil

desertification · glacier retreat · ecosystem · degradation · pollution · contamination · acidification · eutrophication · extinction · warming

emptying

Removing all contents

• drainageLiquid removal system
• evacuationRemoval from danger
• drainingDepleting one's reserves

void · vacuum · hollowing · clearing · purging · deflation · runoff · seepage · leakage · outflow

• resourcesresources, money, natural resources, human resources, financial resources
• environmental harmair pollution, water pollution, pollution, oil spills, acid rain
• burnoutburned out, burnt out, burn out, burning out, burnout
• dangersdanger, peril, hazard, risk, menace
• declinedecline, in decline, decrease, downswing, on the decline
• declinesdrop, decline, downtrend, downturn, downfall