Key Concepts

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  • Created by: Ice_Fox
  • Created on: 06-10-21 12:04

Adaption

Responces to environmental change to modify human behavior and economic systems permenantly

For example:

Reduced rainfall causes farmers to use more effective irrigation and draught resistant crops

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Causality

The idea that a cause will create an effect

For example:

Storm waves (a cause) leads to more coastal erosion (an effect)

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Equilibrium

In a system, inputs and outputs are balanced, meaning there is very little change

For example:

The amount of sediment being deposited on a beach is equal to the amount of sediment leaving, so the beach stays roughly the same size

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Feedback

An automatic internal response to changes in a system

Negative feedback - the response reduces the change, bringing the system back to equilibrium

For example:

After removal of sediment during storm conditions, an offshore bar forms which reduces erosion and helps sediment return to the beach, restoring equilibrium

Positive feedback - the response amplifies the change, moving the system further away from equlibrium

For example:

If the sediment on a beach is transported away, the cliff is unprotected and therefore subject to increased erosion and more coastal retreat

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Globalisation

Increase in connections between nations, businesses and people that make the modern world

For example:

Due to increased connectivity, a new method of coastal management might be shared around the world

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Identity

What a place or person is recognised and known for

For example:

A place identity can be affected by past characteristics (e.g. Toxteth being a major port town in the past has meant it has diversity as part of its identity) 

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Inequality

An inbalance of resources, opportunities, respect...etc within a society

For example:

There is inequality between Toxteth and Lympstone in ability to outright own a house

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Interdependance

A mutual reliance between two or more things (e.g. countries, people, abiotic and biotic factors in a system...etc)

For example:

Flora is reliant on soil to provide nutrience, whilst the soil needs decomposed flora to form nutrience

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Mitigation

An action taken to lessen the impacts of a hazard for humans

For example:

Aeseismic buildings mitigate the damage earthquakes cause to property

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Representation

The portrayal of something in a way the individual understands

For example:

Someone from a wealthy area is likely to represent the world in a different way to someone from a poor area

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Resiliance

The ability of countries, individuals, environmental systems...etc to recover or resist a negative event

For example:

A coastal envirnonment might be more resiliant to storm conditions through negative feedback (e.g. formation of off-shore bars)

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Risk

How likely a variety of possible outcomes from one event is

For example:

There is risk involved with living in a coastal environment because erosional processes may damage property

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Sustainability

The use of resources to ensure long-term use whilst maintaining environmental and economic health

For example:

Removing as littlle sand from coastlines for construction to maintain the sediment budget

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Systems

A group of interrelated objects and the relationship between them

For example:

A coastal system has many interrelated elements, such as sediment and energy (all inputs, outputs and throughputs)

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Thresholds

A point at which the situation is irreversable

For example:

If enough sediment is removed from a coastline, the cliff will have no protection and so erosion will occur at an accelated rate

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