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Almost all of Europe's original forests have been destroyed. Scientists assert that human activity has pushed the earth into a sixth mass extinction event. [5] [6] The loss of biodiversity has been attributed in particular to human overpopulation, continued human population growth and overconsumption of natural resources by the world's wealthy.
[27]: 2321 For example, the decline of sea ice in the Arctic has been accelerating during the early twenty‐first century, with a decline rate of 4.7% per decade (it has declined over 50% since the first satellite records). [28] [29] [30] One well known example of a species affected is the polar bear, whose habitat in the Arctic is threatened ...
Erected in 1701, it was destroyed in 1929—one of several memorials installed during British rule which were destroyed after Ireland became independent. Other examples of political destruction of images include: There have been several cases of removing symbols of past rulers in Malta's history.
The World Wildlife Fund's ecoregion project catalogues habitat types throughout the world, including habitat loss such as deforestation, showing for example that even in the rich forests of parts of Canada such as the Mid-Continental Canadian forests of the prairie provinces half of the forest cover has been lost or altered.
According to a scientific sampling, 150 million mu (100,000 square kilometres) of China's cultivated land have been polluted, with contaminated water being used to irrigate a further 32.5 million mu (21,670 square kilometres) and another 2 million mu (1,300 square kilometres) covered or destroyed by solid waste. In total, the area accounts for ...
The Society for Ecological Restoration defines restoration as "the process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed." [1] Restoration ecology is the academic study of the science of restoration, whereas ecological restoration is the implementation by practitioners. [21]
The United Nations Sustainable Development Goal 15 has a target to restore degraded land and soil and achieve a land degradation-neutral world by 2030. [15] The full title of Target 15.3 is: "By 2030, combat desertification , restore degraded land and soil, including land affected by desertification, drought and floods, and strive to achieve a ...
The term Mahapralaya stands for "Great Dissolution", and is synonymous with the Brahmapralaya. [15] According to the Shiva Purana, the lower ten realms are destroyed during this phenomenon, [16] while the higher four realms called the Satyaloka, Tapa-loka, Jana-loka, and Mahar-loka, are preserved. During each Mahapralaya, all 14 realms are ...