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Caucasus vegetation land cover, 1940 View of the Caucasus Mountains in Dagestan, Russia. The Caucasus is an area of great ecological importance. The region is included in the list of 34 world biodiversity hotspots. [66] [67] It harbors some 6400 species of higher plants, 1600 of which are endemic to the region. [68]
Share of the population without access to an improved water source, 2020. Global access to clean water is a significant global challenge that affects the health, well-being, and development of people worldwide. While progress has been made in recent years, millions of people still lack access to safe and clean drinking water sources.
Out of all the water on Earth, saline water in oceans, seas and saline groundwater make up about 97% of it. Only 2.5–2.75% is fresh water, including 1.75–2% frozen in glaciers, ice and snow, 0.5–0.75% as fresh groundwater and soil moisture, and less than 0.01% of it as surface water in lakes, swamps and rivers.
The South Caucasus, also known as Transcaucasia or the Transcaucasus, is a geographical region on the border of Eastern Europe and West Asia, straddling the southern Caucasus Mountains. [ 1 ] [ 2 ] The South Caucasus roughly corresponds to modern Armenia , Georgia , and Azerbaijan , which are sometimes collectively known as the Caucasian States .
The North Caucasus, [b] or Ciscaucasia, [c] is a subregion in Eastern Europe governed by Russia. [d] It constitutes the northern part of the wider Caucasus region, which separates Europe and Asia. The North Caucasus is bordered by the Sea of Azov and Black Sea to the west, the Caspian Sea to the east, and the Caucasus Mountains to the south.
The Caspian Sea is the world's largest inland body of water, described as the world's largest lake and usually referred to as a full-fledged sea. [2] [3] [4] An endorheic basin, it lies between Europe and Asia: east of the Caucasus, west of the broad steppe of Central Asia, south of the fertile plains of Southern Russia in Eastern Europe, and north of the mountainous Iranian Plateau.
The water bodies of Azerbaijan were formed over a long geological timeframe and changed significantly throughout that period. This is particularly evidenced by remnants of ancient rivers found throughout the country. The country's water systems are continually changing under the influence of natural forces and human-introduced industrial ...
Western Caucasus on se-tenant postage stamps of Russia, 2006 The Western Caucasus includes a natural UNESCO World Heritage Site , comprising the extreme western edge of the Caucasus Mountains . UNESCO specialists say that it is the only large mountain area in Europe that has not experienced significant human impact.