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  2. Geological hazard - Wikipedia

    en.wikipedia.org/wiki/Geological_hazard

    Huge landslide at La Conchita, 1995. A geologic hazard or geohazard is an adverse geologic condition capable of causing widespread damage or loss of property and life. [1] These hazards are geological and environmental conditions and involve long-term or short-term geological processes.

  3. The world's 100 most threatened species - Wikipedia

    en.wikipedia.org/wiki/The_world's_100_most...

    The World's 100 most threatened species [1] is a compilation of the most threatened animals, plants, and fungi in the world. It was the result of a collaboration between over 8,000 scientists from the International Union for Conservation of Nature Species Survival Commission (IUCN SSC), along with the Zoological Society of London . [ 2 ]

  4. Volcanic hazard - Wikipedia

    en.wikipedia.org/wiki/Volcanic_hazard

    Tephra is a generalized word for the various bits of debris launched out of a volcano during an eruption, regardless of their size. [4] Pyroclastic materials are generally categorized according to size: dust measures at <1/8 mm, ash is 1/8–2 mm, cinders are 2–64 mm, and bombs and blocks are both >64 mm. [5] Different hazards are associated with the different kinds of pyroclastic materials.

  5. Category:Geological hazards - Wikipedia

    en.wikipedia.org/wiki/Category:Geological_hazards

    العربية; বাংলা; 閩南語 / Bân-lâm-gú; Беларуская (тарашкевіца) Bosanski; Català; Ελληνικά; فارسی; 한국어

  6. Sentinel species - Wikipedia

    en.wikipedia.org/wiki/Sentinel_species

    The classic example is the "canary in the coal mine".The idea of placing a warm-blooded animal in a mine to detect carbon monoxide was first proposed by John Scott Haldane in 1895, [2] and canaries were used as early as 1896.

  7. Category:Species made extinct by human activities - Wikipedia

    en.wikipedia.org/wiki/Category:Species_made...

    This category lists some of the species that have become extinct due to human activity, whether intentionally or unintentionally.. If a more specific reason is known, the species should also be assigned to a subcategory of Category:Species by threat.

  8. Vulnerable species - Wikipedia

    en.wikipedia.org/wiki/Vulnerable_species

    Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity, an example being the military macaw. In 2012 there were 5,196 animals and 6,789 plants classified as vulnerable, compared with 2,815 and 3,222, respectively, in 1998. [1]

  9. List of environmental disasters - Wikipedia

    en.wikipedia.org/wiki/List_of_environmental...

    Agent Orange use by the United States during the Vietnam War, resulting in lasting serious health effects on the Vietnamese population, such as cancer, nervous system disorders, and countless related fatalities