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Holodiscus discolor is a fast-growing deciduous shrub usually from to 1.2–1.5 metres (4–5 feet) in width, and up to 2.1 m (7 ft) tall. Its alternate leaves are small, 5–9 centimetres (2– 3 + 1 ⁄ 2 inches) long and 4–7 cm (1 + 1 ⁄ 2 –3 in) broad, lobed, juicy green when new. [6]
The UN Environment Programme (UNEP) works to safeguard oceans and seas and encourage the wise use of marine resources, particularly through its Regional Seas Program. [64] The sole international legal foundation for regional ocean and sea protection is the Regional Seas Conventions and Action Plans.
Ocean Elders is a worldwide group of oceans defenders, dedicated to protecting the ocean, wildlife, and nature itself. The group promotes the expansion of existing marine protected areas and the creation of new ones, allowing marine ecosystems to recover from the effects caused by human activities.
A diversity of corals. Coral reef protection is the process of modifying human activities to avoid damage to healthy coral reefs and to help damaged reefs recover. The key strategies used in reef protection include defining measurable goals and introducing active management and community involvement to reduce stressors that damage reef health.
A marine coastal ecosystem is a marine ecosystem which occurs where the land meets the ocean. Worldwide there is about 620,000 kilometres (390,000 mi) of coastline. Coastal habitats extend to the margins of the continental shelves, occupying about 7 percent of the ocean surface area.
Swimmers at the beach might not be excited to see the 14-foot (4.3-meter) white shark, but scientists following LeeBeth's movements are thrilled that the big fish's epic journey could provide ...
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The mass of the oceans is approximately 1.35 × 10 18 metric tons, or about 1/4400 of the total mass of the Earth. The oceans cover an area of 3.618 × 10 8 km 2 with a mean depth of 3,682 m, resulting in an estimated volume of 1.332 × 10 9 km 3. [20]