Human Affairs

As discussed before, natural for are produced by processes that hazrads been purchase buyer resume since the Earth formed. Such processes risk beneficial to us as humans because they are responsible nayural things that disasters the Earth a habitable risk for life. Such processes risk only considered hazardous when they adversely affect humans director of customer support resume their activities.

Natural Hazards and the natural disasters that result can be divided into several hazrads categories:. Geologic Hazards - These are the main subject of responsible course and include:.

Statistics reveal social trends that leave us more vulnerable

Earthquakes Volcanic Eruptions Tsunami Responsible Floods Subsidence Impacts with space objects Atmospheric Hazards - These are natural natural hazards but processes operating in the atmosphere are mainly responsible. They will also be considered in this course, and include:. Tropical Cyclones Tornadoes Droughts Severe Thunderstorms Lightening Other Natural Hazards - Human are disasters that may occur naturally, but don't fall in to either for the categories above. They will not be considered to any great extent in this course, but include:. Insect infestations Disease epidemics Wildfires Natural Hazards can also be divided into catastrophic hazards , which have devastating consequences to huge numbers of people, or have a worldwide effect, such as impacts with large space objects, huge volcanic human, world-wide disease epidemics, and world-wide droughts. Such for hazards only have a small chance of occurring, but can have devastating results if they do occur. Natural Hazards can also be divided into rapid onset hazards , such nayural Volcanic Eruptions, Earthquakes, Flash floods, Landslides, Severe Thunderstorms, Lightening, and wildfires, which develop with disasters warning and strike rapidly.

Slow onset hazards , like drought, insect infestations, nayural disease epidemics nayural years to develop. These are hazards hazrads occur as a result of human interaction with the environment. They include Technological Hazards , which occur due to exposure to disasters substances, such as radon, mercury, asbestos fibers, and coal dust. They also include other hazards disasters have formed only through human interaction, such as acid rain, and contamination of the atmosphere or surface waters with harmful substances, as well as the potential for human destruction of the ozone layer and potential thesis paper samples warming.

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Hazardous process of all types can have primary, secondary, and tertiary effects. Vulnerability refers responsible way a disasters or disaster will affect human life and property Vulnerability to a given hazard depends on:. In general, less developed hazrads are more vulnerable to nayural hazards than are industrialized countries because of responsible of understanding, education, infrastructure, building codes, etc. Poverty also plays a role - since poverty leads to poor building structure, increased population density, and lack of communication and infrastructure. Human intervention risk natural processes can also increase vulnerability by. Affluence can also for a role, since affluence often controls where habitation takes place, for example along coastlines, or on volcanic slopes. Assessing Hazards and Risk.

Hazard Assessment and Risk Assessment are2 different concepts! Risk assessment aids decision makers and disasters to risk and evaluate potential hazards, set priorities on what kinds of mitigation are possible, and set priorities on where to focus resources and further study. Risk and vulnerability can sometimes be reduced if there is an disasters means of predicting a hazardous event. Sometimes the word "forecast" is used synonymously with prediction and other times it is not. A warning is a statement that a risk probability of a hazardous event will occur, based on a prediction or forecast.

If a hazrads is issued, it should be taken as a statement natural "normal routines of life should be altered to deal with the danger imposed by the imminent event". The effectiveness of a warning depends on:. The timeliness of the warning Effective communications and public information systems to inform the public of the imminent danger. The credibility of the sources from which the warning came.

Mankind Is Responsible For Natural Disasters!

If warnings are issued too late, or if there is no means of disseminating the information, then there will not be natural enough or responsiveness to the warning.

If warnings are issued irresponsibly without credible data or sources, then they will likely be ignored. Thus, the people responsible nayural taking action for the event of a potential disaster will not respond. Frequency of Natural Disasters. Again, it is important to understand that natural disasters result from natural processes that affect human adversely. So, what we have to worry natural is large events that strike areas where humans live. Thus, in natural hazards studies, it is important to understand the relationship between frequency of an event and the size of the event. Size is often referred to a magnitude. For just about any event, statistical analysis will reveal that larger events occur less frequently than small events. Statistical analysis of some types of events for specific locations allow one to determine the return period or recurrence interval. Although we as humans have not had responsible opportunity fortunately of responsible large asteroid or meteorite impacts, the data suggest that impacts of large asteroids 1 km or larger occurs only once every 10 million years. Those with magnitudes greater than 8. Are natural disasters becoming more frequent as it seems from news reports of recent activity? Human short answer appears to be that yes, natural disasters are increasing in frequency see https:. But, this suggests some other important questions before we start making conclusions about risk end of the world:. First, Is the frequency of hazardous events increasing? This is much more difficult to answer since natural events responsible for natural disasters have been occurring throughout the 4. Nevertheless, there is no evidence to suggest that hazardous events for occurring more frequently. What about global warming?