disaster by design Flashcards
what happens if you keep having a rising background trend?
you’ll keep setting new records and therefore increasing the extreme each year
what is the disaster by design problem?
many disaster losses are predictable, as they derive from the interactions between the physical environment, social, and infrastructure.
why are the earth systems changing?
global warming, change in weather, patterns of heat and precipitation.
why do events get more extreme and dangerous?
the weather feeds off the heat and therefore causes new records. warmer surface temperature, more powerful natural disasters and weather/
when did humans start manipulating the environment?
many say the industrial revolution. however, ever since we started to build fires we have been affecting the environment differently than any other animal.
what are geophysical events?
earthquakes, tsunamis
what are hydrological events?
food, mass movement
what are meteorological events?
the tropical storm, local storm
what are climatological events?
extreme temperatures
which event can humans not control?
only geophysical.
which event has increased significantly in the past 30 years?
hydrological events
why are more people at risk?
changed in spatial patterns of populations show more people are exposed to hazard impacts.
why are people more exposed to risk?
number of people livign in hazard zones are increasing- low level shores etc. and rising walth inequality means more poeple are vulnerable and less likely to recover.
what are the US coastal watershed countries?
US countries which are on the coast- in danger of floods such as florida.
how much did Florida increase in population?
1 million.
what’s happening to the English seashores?
peaked early 20th century. decreased dramatically, only for 3 months and then no-one goes.
what is the built environment increasing in size?
public infrastrutcture, transportation networks, homes, commercial buildings- all very dense and increasing in potential loss from an event.
how has global deaths and the number of disasters changed from 1900 to 2000?
global deaths have decreased. the number of disasters has increased- both dramatically.
what has the settlement of hazardous areas destroyed?
ecosystems that could have provided protection from natural perils.
what ecosystems buffer coastal flooding?
marshes and mangroves.
what is the cycle of natural hazards?
hazard event> damage and impact> intervention> decrease natural environment> increase built environment> then another hazard
what is the risk equation?
risk = hazard x consequence R = H x E x V
