Showing posts with label Natural and environmental hazards. Show all posts
Showing posts with label Natural and environmental hazards. Show all posts

Thursday, December 22, 2016

Natural and environmental hazards

Natural and environmental hazards


A volcano injecting hot ash into the atmosphere
Large areas of Earth's surface are subject to extreme weather such as tropical cycloneshurricanes, or typhoons that dominate life in those areas. From 1980 to 2000, these events caused an average of 11,800 human deaths per year. Many places are subject to earthquakes, landslidestsunamisvolcanic eruptionstornadoessinkholesblizzards, floods, droughts, wildfires, and other calamities and disasters.
Many localized areas are subject to human-made pollution of the air and water, acid rain and toxic substances, loss of vegetation (overgrazingdeforestationdesertification), loss of wildlife, species extinctionsoil degradationsoil depletion and erosion.
There is a scientific consensus linking human activities to global warming due to industrial carbon dioxide emissions. This is predicted to produce changes such as the melting of glaciers and ice sheets, more extreme temperature ranges, significant changes in weather and a global rise in average sea levels.