Arctic Lichens: Tiny Harbingers of Earth's Health

The Clean Arctic project's scientific expedition is currently studying lichens at Cape Chelyuskin, the northernmost point of mainland Eurasia. Researchers are collecting diverse samples, including soil, water, lichens, and polar bear fur, to gauge pollution levels. Lichens, particularly bushy species like Iceland moss, are ideal for this research as they readily absorb environmental elements, including heavy metals.

These unique organisms are vital to Arctic ecosystems, forming a significant portion of soil organic matter and acting as a primary food source for local wildlife. Scientists emphasize the high biodiversity found even in small Arctic areas and the importance of preserving it. Lichens serve as early warning systems, indicating environmental shifts before visible signs emerge.

Further analysis will involve mass spectrometry to identify pollutant concentrations in the collected samples. Alongside lichen research, soil samples are also being collected, with metal barrels identified as a primary pollution source. The Clean Arctic project, active since 2021, has already removed 22,000 tons of waste from northern territories.