Environmental concerns in disasters

The environmental impact of natural disasters and conflicts present a number of threats to response and recovery. 

 Threats during response...  Threats to early recovery.... 
  • To life -  through hazardous chemicals, infrastructure e.g. dams, nuclear plants
  • To health -  through toxic waste and short and long term impacts
  • To livelihoods -  damage to forests, soil, pastures, wetlands, reefs
  • To security -  fragility of ecosystem and threat to human security, increased conflict over limited resources

Equally, response and recovery activities can pose a serious threat to the environment.

Early analysis of the potential impacts is needed to identify mitigation strategies. 

 

Adverse impacts of disaster response

Sectors Environmental impact risks

Key considerations for response

  • Presence and disposal of hazardous materials
  • Management of emergency waste
  • Capacity of water sources in short and long term
  • Sanitation design
  • Energy consumption demands and available resources
  • Refugee/IDP camps size, siting and long term impact
  • Transport pollution
  • Opportunities for green procurement
  • Applicable standards and guidelines e.g. Sphere
  • Getting expert guidance in assessments, material selection and project design
Health  

Improper management of chemicals, water, healthcare waste, dead bodies.

WASH  

Damage to aquifers; water contamination from sewage; poor rehabilitation of wells; inappropriate systems e.g. septic tanks.

 
Shelter  Unsustainable construction materials e.g. timber, burnt bricks, sand; inappropriate site selection or design; deforestation and soil erosion; improper disposal of waste or debris.  
Camp management

 

Land degradation; loss of biodiversity; improper waste and chemical disposal; unsustainable use of fuel and materials; poor management/decommissioning of camps and pit latrines.  
Logistics

 

Poor management and disposal of oil, fuel, tyres; improper waste disposal, procurement of goods produced in an unsustainable way.  

 Early recovery

Failure to conduct environmental impact assessment; inappropriate land use, building /infrastructure designs and urban planning; unsustainable use of natural resources for reconstruction/livelihoods; unequal access to resources.

 

Factors affecting the severity of environmental impacts

  Geographic   Social  Environmental
  • population density
  • number of people affected or displaced,
  • extent of disaster area
  • availability of resources
  • level of self-sufficiency
  • support from host communities
  • respect for environment
  • social / power structures
  • livelihood options
  • environmental resilience and sustainability i.e. ability to withstand negative impacts and recover
  • ability to absorb waste

Page adapted from Humanitarian action and the environment © 2007 UNEP, OCHA

This page was last updated on 24 June 2011