Hot blob anomaly: its fingerprints spread across the planet

The bitterness anomaly is observed around the world

The researchers were able to prove that the anomaly of a giant hot drop in the form of unusually warm ocean water is spreading across the globe. One of the reasons that provokes the destruction of marine life lies in the global climate change. The anomaly was first recorded in 2013 in the Pacific Ocean off the coast of North America. Suddenly, one of the water zones changed temperature, becoming very warm. After that, the process of death of many marine and coastal inhabitants was recorded. Thousands of bodies of sea lions, seabirds, salmon and other organisms were thrown onto the shores.

Warm water provoked a massive bloom of poisonous algae, stopping the crab fishing. Many marine inhabitants rushed to change their place of residence. For a short period, the ocean lost several subtropical species, pyrosomes and swordfish disappeared from their habitual range.

The marine biologists estimate that the hot drop has caused the deaths of over 100 million Pacific cod. The peak of the anomaly occurred when the normal temperature of ocean water increased by 4 degrees. And the heat anomaly persisted until 2015. The scientists conducted a study and found that the anomaly is not the only one. Several more hot drops, even larger in size, formed in different parts of the world, and each caused irreparable damage to aquatic ecosystems.

They halted decades of rescuing the humpback whale population, caused massive coral bleaching, melting sea ice, and massive emissions of carbon dioxide from dying seaweed. The intensity of these events is associated not only with global climate change.

Ecologists from the University of Bern in Switzerland studied all such anomalies that were recorded in different periods. They found that the period of action of the heat drops lasted an average of 40 days, having a temperature rise of up to 5 degrees, spreading over a distance of up to 1.5 million kilometers in total. The seven largest anomalies were not associated, according to the scientists, with climate warming.

The analysis showed that the likelihood of the impact of heat waves on the sea is more than 20 times higher due to the anthropogenic climate change. During the first observation period, the scientists recorded the increasing frequency, duration and intensity of large sea heat waves. The reason that complements the climate change, may lie in the spread of pollutants.

Before they began to influence the Earth's thermostat, such intense anomalies occurred once every hundred years or more. The model created by the scientists showed that as soon as global warming increases the air temperature by 1.5 degrees, then abnormal hot drops will occur every decade, shortening periods to one year, increasing the water temperature by at least three degrees.