Scientific studies reveal avian energy efficiency and Neretva plastic risks

A study published in the journal Science, involving researchers from Slovenia, has revealed that utilizing air currents is the most energy-efficient method of active movement on Earth. By tracking 850 birds and bats over 17 years using radar and telemetry, researchers found that soaring through specific corridors can reduce energy expenditure to levels comparable to resting.

Separately, environmental researchers are warning of a potential plastic waste crisis in the Neretva River, which connects Bosnia and Herzegovina to the Croatian coast. Due to decreasing freshwater flow in the lower reaches, marine currents may begin pushing plastic waste back into the river instead of out to the open sea. The Neretva is estimated to carry approximately 127 tons of plastic into the sea annually, according to The Ocean Cleanup. The TETHYS4ADRION international project is currently studying these patterns to improve cross-border cooperation in reducing riverine and marine pollution.