In some countries, more and more people are becoming interested in finding out about the history of the house or building they live in. What are the reasons for this? How can people research this?

Environmental hazards are defined as extreme events or substances in the Earth and its ecological system that may cause adverse consequences for humans and things they value. These include geophysical and meteorological phenomena

such

as earthquakes and droughts. Approaches to environmental hazards developed from an initial focus on preventing natural disasters through engineering works

,

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to an emphasis on how human

behavior

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behaviour

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and perceptions influence response and adjustment to hazards, and

then

to analyses of how political and economic processes and structures make some people and places more vulnerable to extreme events than others. Environmental risks are often defined as the product of a hazard and the likelihood of its occurring, using a simple formula that defines

a

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risk

as

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the product of

probability

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the probability

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of an event, and its severity measured in terms of the population exposed, and the nature of the consequences. Environmental

risk

assessment employs a wide range of experimental, statistical, and economic techniques to estimate and compare risks from pollution, technologies, and everyday activities. Critical perspectives on

risk

point to the limitations of quantitative assessments, including the differences between public and ‘expert’ judgments, the unequal distribution of

risk

exposure in space and society, and

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the ways in which risks are constructed and defined by different interest groups.