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During summer, the western Indian Ocean is home to one of the largest concentrations of marine phytoplankton blooms in the world. Increased warming in the Indian Ocean enhances ocean stratification, which prevents nutrient mixing in the euphotic zone where ample light is available for photosynthesis. Thus, primary production is constrained and ...
This list of global issues presents problems or phenomena affecting people around the world, including but not limited to widespread social issues, economic issues, and environmental issues. Organizations that maintain or have published an official list of global issues include the United Nations, and the World Economic Forum.
Environmental threats to the Great Barrier Reef; Extinction of Australian megafauna; Four Pests Campaign of China, 1958; Ghost nets; Grounding of SS Makambo on Lord Howe Island; Gulf of Mexico dead zone; Invasive species in New Zealand; Introduction of the Nile perch into Lake Victoria in Africa, devastating indigenous fish species ...
Governments have no time to lose when it comes to implementing a new global ocean treaty to protect the high seas as threats from human activities intensify, a report by environmental group ...
This includes but is not limited to marginal seas, and this is the definition used for inclusion in this list. A marginal sea is a division of an ocean, partially enclosed by islands, archipelagos, or peninsulas, adjacent to or widely open to the open ocean at the surface, and/or bounded by submarine ridges on the sea floor. [7] The World Ocean.
Human activities including logging, pollution, overfishing and urban development are driving a staggering loss of biodiversity. ... is the biggest current threat to nature, but adds that climate ...
The World Scientists' Warning to Humanity in 1992 begins with: "Human beings and the natural world are on a collision course". About 1,700 of the world's leading scientists, including most Nobel Prize laureates in the sciences, signed this warning letter. The letter mentions severe damage to the atmosphere, oceans, ecosystems, soil productivity ...
In a series of graphics, we take a look at some of the biggest environmental challenges facing our planet. Five graphics that show some of the biggest threats facing the natural world Skip to main ...