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[[Image:Kara_Sea_islands.PNG|Kara Sea islands|thumb]] [[File:Kara_Sea_structural_map.png|left|Kara Sea structural map|thumb|left]] '''Kara Sea''' is a marginal sea located in the Arctic Ocean to the north of [[Siberia]] and to the east of the [[Barents Sea]]. It is separated from the Barents Sea by the [[Kara Strait]] and [[Novaya Zemlya]], and from the [[Laptev Sea]] by the [[Severnaya Zemlya]] archipelago. The sea covers approximately 926,000 square kilometers (357,000 sq mi) and is largely shallow, with an average depth of about 110 meters (360 ft), making it significantly affected by river runoff, particularly from the [[Ob River]] and the [[Yenisei River]], which contribute to the low salinity of its waters.

== Geography ==
The Kara Sea is characterized by its harsh climate, extensive ice cover during the winter months, and its remote location. The sea is bordered by several large islands and archipelagos, including [[Novaya Zemlya]], [[Severnaya Zemlya]], and the northern part of the [[Yamal Peninsula]]. The coastlines are generally steep and rugged, especially near the major islands. The sea's major bays and gulfs include the [[Ob Bay]] and [[Taz Bay]], which are important for Russian navigation and shipping, particularly for the transport of natural gas and oil from the Siberian interior.

== Climate ==
The climate of the Kara Sea region is polar, characterized by long, cold winters and short, cool summers. The sea is covered by ice from late September to June, with the ice reaching its maximum extent in April. The ice cover varies significantly from year to year, influenced by the Arctic climate patterns, including the North Atlantic Oscillation and the Arctic Oscillation.

== Ecology ==
The Kara Sea is home to a diverse range of marine life, adapted to its cold, ice-covered waters. This includes various species of [[seals]], [[walruses]], and the [[polar bear]], which are dependent on the sea ice for hunting and breeding. The sea also supports a variety of fish species, such as Arctic cod and haddock, which are crucial for the local marine food web. The river runoff carries significant amounts of nutrients into the sea, supporting a rich biodiversity, including various species of [[phytoplankton]] and [[zooplankton]], which are essential for the marine ecosystem.

== Environmental Concerns ==
The Kara Sea has been a site for nuclear waste dumping by the Soviet Union, raising concerns about radioactive contamination. Additionally, the increasing interest in the Arctic for oil and gas exploration poses potential risks of oil spills, which could have devastating effects on the fragile Arctic marine environment. Climate change is another significant concern, as the warming temperatures lead to the melting of sea ice, affecting the habitat of ice-dependent species and altering the ecological balance of the region.

== Economic Importance ==
The Kara Sea is of significant economic importance to Russia, serving as a key route for the [[Northern Sea Route]], which is becoming more accessible due to the melting of sea ice caused by global warming. This sea route offers a shorter passage between European Russia and the Far East, reducing shipping times and costs. The sea also has vast untapped reserves of oil and gas, which are of strategic interest for Russia's energy sector. However, the exploitation of these resources is challenged by the harsh environmental conditions and the need for sustainable development practices to protect the Arctic environment.

[[Category:Seas of the Arctic Ocean]]
[[Category:Geography of Siberia]]
{{geography-stub}}

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