<map version='1.0.1'>
<node TEXT='The Caspian Sea'>
<node TEXT='Location'>
<node TEXT='Between Europe and Asia'/>
<node TEXT='Borders Iran, Russia, Kazakhstan, Turkmenistan, and Azerbaijan'/>
</node>
<node TEXT='Physical Characteristics'>
<node TEXT='Largest inland body of water in the world'/>
<node TEXT='Saline lake'/>
<node TEXT='Depth ranges from 5 to 1,025 meters'/>
</node>
<node TEXT='Ecosystem'>
<node TEXT='Rich in biodiversity'/>
<node TEXT='Home to over 100 endemic species'/>
<node TEXT='Commercially important for fishing'/>
</node>
<node TEXT='Geopolitical Importance'>
<node TEXT='Oil and gas reserves'/>
<node TEXT='Disputed territorial claims'/>
<node TEXT='Importance for transportation and trade'/>
</node>
<node TEXT='Environmental Issues'>
<node TEXT='Water pollution from oil and gas industries'/>
<node TEXT='Overfishing and depletion of fish stocks'/>
<node TEXT='Threats to endangered species'/>
</node>
<node TEXT='Future Prospects'>
<node TEXT='Potential for increased oil and gas exploration'/>
<node TEXT='Opportunities for sustainable tourism'/>
<node TEXT='Need for international cooperation to address environmental issues'/>
</node>
</node>
</map>