Onde antes havia água, agora existe terra — o fenômeno que está redesenhando o maior mar fechado do planeta

📡 Fonte: Gizmodo 🏷️ Ciência 🤖 Auto
Onde antes havia água, agora existe terra — o fenômeno que está redesenhando o maior mar fechado do planeta

📸 Créditos da imagem: Unsplash

Emergence of New Islands

In the Caspian Sea, the largest inland body of water, new land masses have begun to appear where water once covered them.

Why the Sea Is Shrinking

The decline is not due to rising seabed or volcanic activity but to a gradual loss of water, lowering the sea level by about 2.5 meters over the last thirty years.

Impact on the Landscape

With the northern Caspian’s shallow waters, even a modest drop in depth translates into a horizontal retreat of several kilometres, exposing thousands of square kilometres of new terrain.

Ecological Consequences

These emergent islands provide temporary resting spots for the Caspian seal and, during winter, allow wolves to reach the coast when ice bridges form.

Future Projections

Climate‑driven warming and increased evaporation could reduce the sea level by up to 14 metres by 2100, potentially turning large submerged areas into permanent land.

Why It Matters

The changes threaten the seal’s breeding grounds and could open previously protected habitats to human and predator access.

Factors Contributing to Sea Level Drop

  • High evaporation rates due to regional warming
  • Reduced inflow from rivers, especially the Volga
  • Water diversion for irrigation and dams
  • Natural variability of the Caspian basin

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