Search results
Results from the WOW.Com Content Network
The Aral Sea is an example of a collapsed ecosystem. [1] (image source: NASA) An ecosystem, short for ecological system, is defined as a collection of interacting organisms within a biophysical environment. [2]: 458 Ecosystems are never static, and are continually subject to both stabilizing and destabilizing processes. [3]
Spring Valley, which was used as a chemical weapons testing ground during World War I. Sydney Tar Ponds and Coke Ovens sites in the city of Sydney, Nova Scotia, Canada, known as the largest toxic waste site in North America. United States Environmental Protection Agency Superfund sites in the United States
Such alteration, accompanied by changes in the abundance of different species over time, is called ecological succession. Succession often leads to conditions that will once again predispose an ecosystem to disturbance. Pine forests in western North America provide a good example of such a cycle involving insect outbreaks.
On this day in economic and business history... Three great columns of flame rose in the sky over Mount Tambora on April 10, 1815. The long-dormant Indonesian volcano had rumbled to life five days ...
Environmental issues with war — Agent Orange • Depleted uranium • Military Superfund site (Category only) • Scorched earth • War and environmental law • Unexploded ordnance Overpopulation — Burial • Overpopulation in companion animals • Tragedy of the commons • Gender Imbalance in Developing Countries • Sub-replacement ...
An ecological or environmental crisis occurs when changes to the environment of a species or population destabilizes its continued survival. Some of the important causes include: Degradation of an abiotic ecological factor (for example, increase of temperature, less significant rainfalls) Increased pressures from predation
The environmental impact of transport is significant because it is a major user of energy, and burns most of the world's petroleum. This creates air pollution, including nitrous oxides and particulates , and is a significant contributor to global warming through emission of carbon dioxide , [ 275 ] for which transport is the fastest-growing ...
An environmental disaster or ecological disaster is defined as a catastrophic event regarding the natural environment that is due to human activity. [2] This point distinguishes environmental disasters from other disturbances such as natural disasters and intentional acts of war such as nuclear bombings .