UN: Global sea level rise doubled in speed

The rate of global sea level rise has doubled over the past decade, El.kz reports.

This is stated in the Third World Ocean Assessment, prepared by nearly 600 scientists from 86 countries.

According to the United Nations, before 2015, global sea levels were rising by approximately 2 millimeters per year. By 2023, that figure had reached 4.3 millimeters annually.

The report’s authors attribute the worsening condition of the ocean to several factors, including climate change, pollution, industrial-scale fishing, and increasing pressure on marine ecosystems.

The Ocean Continues to Warm

The report notes that ocean warming has accelerated in recent years. The most significant temperature increases have been recorded in the Atlantic Ocean, as well as in the southern regions of the Indian and Pacific Oceans.

Scientists also emphasize that the ocean absorbs most of the excess heat accumulated by the Earth’s climate system. This affects ocean currents, marine life, weather patterns, and coastal areas.

Other Concerns Raised by Scientists

Despite the ocean’s growing importance for the climate and global economy, it remains unevenly studied. As of 2025, scientists had mapped only 27% of the ocean floor.

Deep-sea ecosystems remain among the least explored parts of the planet. At the same time, they are increasingly coming under pressure from resource extraction, pollution, and rising water temperatures.

What the UN Secretary-General Said

UN Secretary-General António Guterres stated that the world can no longer treat the ocean as an unlimited resource. According to him, urgent collective action is needed to protect marine ecosystems.

He stressed that a new relationship with the ocean must be based on science, international law, and the shared responsibility of nations. This involves decisions that affect governments, businesses, and future generations.

Why This Matters to People

The ocean covers more than 70% of the Earth’s surface and plays a vital role in climate regulation, biodiversity, food security, raw materials, and energy production. Its condition directly affects coastal cities, fisheries, trade, and the safety of millions of people.

Sea-level rise is particularly dangerous for low-lying areas. Among the most vulnerable cities is Malé, the capital of Maldives, where the risk of flooding during the 21st century is considered one of the country’s major climate challenges.