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When the giant flightless birds called moa were overexploited to the point of extinction, [5] the giant Haast's eagle that preyed on them also became extinct. [6]The concern about overexploitation, while relatively recent in the annals of modern environmental awareness, traces back to ancient practices embedded in human history.
A gyre is a circular ocean current formed by the Earth's wind patterns and the forces created by the rotation of the planet. [33] There are five main ocean gyres: the North and South Pacific Subtropical Gyres, the North and South Atlantic Subtropical Gyres, and the Indian Ocean Subtropical Gyre. There are significant garbage patches in each of ...
Ocean Conservancy and its International Coastal Cleanup is an example of a public-facing campaign that aims to increase participation in conservation efforts among every day civilians. On a predetermined date every year, Ocean Conservancy promotes The International Coastal Cleanup to rally communities to volunteer to collect trash from the ...
Economic gains from natural resources are mostly beneficial when directed towards initiatives such as job creation, skill enhancement, capacity building, and pursuit of long-term developmental objectives. Thus, reliance on one or more natural resources holds financial risk when aiming for a stable economic growth. [28]
The natural tidal exchange of water and marshes began to be restored. And the sea otters came back. Southern sea otters along the West coast were hunted almost to extinction for their thick, ...
While marine pollution can be obvious, as with the marine debris shown above, it is often the pollutants that cannot be seen that cause most harm.. Marine pollution occurs when substances used or spread by humans, such as industrial, agricultural and residential waste, particles, noise, excess carbon dioxide or invasive organisms enter the ocean and cause harmful effects there.
On Dec. 26, 2004, a 9.2-magnitude earthquake shook Southeast Asia, triggering the worst tsunami in recorded history. According to United Nations estimates, more than 220,000 people were killed ...
Marine debris, also known as marine litter, is human-created solid material that has deliberately or accidentally been released in seas or the ocean.Floating oceanic debris tends to accumulate at the center of gyres and on coastlines, frequently washing aground, when it is known as beach litter or tidewrack.