Helicopters as a source of recent black carbon in pristine Antarctic lakes (Helikoptery jako źródło współczesnego czarnego węgla w dziewiczych jeziorach antarktycznych)
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Helicopters as a source of recent black carbon in pristine Antarctic lakes (Helikoptery jako źródło współczesnego czarnego węgla w dziewiczych jeziorach antarktycznych)

In the recorded history, Antarctica is noted as the last region on Earth to be discovered and colonized by humans. More than 170 million years ago, Antarctica was part of  Gondwana – a supercontinent. Antarctica separated from Gondwana ca. 170 million years ago, and as we know it today was formed around 25 million years ago. Due to … Continue reading

Cyanobacteria – glacial ecosystems engineers. Do the same species live everywhere? (Cyjanobakterie – inżynierowie ekosystemów lodowych. Czy wszędzie żyją te same gatunki?)
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Cyanobacteria – glacial ecosystems engineers. Do the same species live everywhere? (Cyjanobakterie – inżynierowie ekosystemów lodowych. Czy wszędzie żyją te same gatunki?)

  Can you imagine a particular species of bird or butterfly inhabiting forests in all the regions of our planet? Probably not… However, there are some micro-organisms which can exist in regions distant from one another. Cyanobacteria are a worldwide group of bacteria that obtain energy through photosynthesis, and thus they are responsible for oxygen … Continue reading

Anthropic contaminants are accumulated, stored and released from glaciers (Zanieczyszczenia cywilizacyjne są akumulowane, a następnie  uwalniane z topniejących lodowców)
science

Anthropic contaminants are accumulated, stored and released from glaciers (Zanieczyszczenia cywilizacyjne są akumulowane, a następnie uwalniane z topniejących lodowców)

Can you imagine the picks of the European Alps without glaciers? Such a dramatic scenario is likely to take place by the end of 2100. As a source of electric power, water for domestic use and a supply of water for downstream ecosystems mountain glaciers are of great importance. Currently, they are melting and release … Continue reading

Unexpected sources of iron for Antarctic marine ecosystems (Niespodziewane źródło żelaza dla ekosystemów morskich w Antarktyce)
science

Unexpected sources of iron for Antarctic marine ecosystems (Niespodziewane źródło żelaza dla ekosystemów morskich w Antarktyce)

What do you see when you think of iron? Probably bars, bridges, cars or plains. In general, the objects you can observe constitute some significant elements of a system we call industry and transport. This element however, is also essential to biological functioning of all organisms. It is crucial for a number of processes such … Continue reading

Bacteria on glaciers may degrade pesticides (Bakterie na lodowcach mogą degradować pestycydy)
glaciers

Bacteria on glaciers may degrade pesticides (Bakterie na lodowcach mogą degradować pestycydy)

At first glance, polar and high mountain regions appear as pristine and not contaminated areas, generally free from human impact. This illusion, however, was shattered by scientists a long time ago. Due to long-range wind transport, although far distant from their original sources, organic contaminants are present in both polar and mountain regions. They are … Continue reading

May glaciers and sea ice ecosystems on Earth be analogues to icy planets and moons? (Czy lodowce i lód morski na Ziemi mogą być analogią do księżyców i planet pokrytych lodem?)
science

May glaciers and sea ice ecosystems on Earth be analogues to icy planets and moons? (Czy lodowce i lód morski na Ziemi mogą być analogią do księżyców i planet pokrytych lodem?)

The Earth is not the only celestial body in the universe partially covered with ice. To focus on Earth’s glaciers as a habitat that can be similar to glaciers on other moons and planets has been of interest to astrobiologists for several years. Whoever has seen Christopher Nolan’s “Interstellar” should probably remember the icy planet … Continue reading

Why don’t invertebrates on the Greenland ice sheet (GrIS) reveal any association with their environment? (Dlaczego nie ma wyraźnego związku między zwierzętami a ich siedliskiem na czapie lodowej Grenlandii?)
glaciers

Why don’t invertebrates on the Greenland ice sheet (GrIS) reveal any association with their environment? (Dlaczego nie ma wyraźnego związku między zwierzętami a ich siedliskiem na czapie lodowej Grenlandii?)

Usually, animals reflect a visible and clear association with their habitats. Typically, the selection depends upon food availability and the absence of predators. However, as opposed to some groups of invertebrates, especially those microscopical in size, these observations are confirmed and relatively well-known for big and well-visible animals. Due to a small size of some … Continue reading