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Related Concept Videos

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Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
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An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
Habitat Fragmentation02:31

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Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
Applications of GIS: Disaster Management and Emergency Response01:29

Applications of GIS: Disaster Management and Emergency Response

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Global Climate Change01:50

Global Climate Change

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Related Experiment Video

Updated: May 21, 2026

Assessing Disaster Resilience of Concrete with Titanium Dioxide Nanoparticles
05:45

Assessing Disaster Resilience of Concrete with Titanium Dioxide Nanoparticles

Published on: November 14, 2025

Are human made disasters different?

L I Sederer

    Epidemiology and Psychiatric Sciences
    |June 8, 2012
    PubMed
    Summary

    This study differentiates natural and human-made disasters, detailing their profound traumatic effects on individuals and communities. It offers lessons from the World Trade Center attacks and proposes a universal disaster response strategy.

    Area of Science:

    • Disaster studies
    • Traumatology
    • Community psychology

    Background:

    • Distinction between natural and human-made disasters.
    • Identification of traumatic effects on individuals and communities.
    • Case study: Lessons learned from the NYC World Trade Center bombings.

    Discussion:

    • Analysis of the psychological and social impacts of disasters.
    • Community resilience and recovery frameworks.
    • The role of shared trauma in community cohesion.

    Key Insights:

    • Disasters, whether natural or human-made, inflict significant trauma.
    • Community-level responses are crucial for effective disaster recovery.
    • The World Trade Center attacks provide valuable insights into disaster response.

    Related Experiment Videos

    Last Updated: May 21, 2026

    Assessing Disaster Resilience of Concrete with Titanium Dioxide Nanoparticles
    05:45

    Assessing Disaster Resilience of Concrete with Titanium Dioxide Nanoparticles

    Published on: November 14, 2025

    Outlook:

    • Developing universal disaster preparedness and response protocols.
    • Enhancing community-level psychological support systems.
    • Future research on long-term disaster impacts and resilience building.