Antibiotic resistance genes stored on glaciers (Geny oporności na antybiotyki przechowywane na lodowcach)
science

Antibiotic resistance genes stored on glaciers (Geny oporności na antybiotyki przechowywane na lodowcach)

The rapid growth and permanent spreading of resistance to antibiotics among bacteria is an unquestioned global problem and according to the World Health Organization, one of the most serious threats of the 21st century. Currently, drug-resistant diseases cause at least 700,000 deaths globally per year and it is estimated that this number will increase to … Continue reading

Melting of the Greenland Ice Sheet increases phytoplankton bloom and biomass in seas (Topnienie czapy lodowej na Grenlandii wpływa na zakwity i wzrost biomasy glonów w morzach)
science

Melting of the Greenland Ice Sheet increases phytoplankton bloom and biomass in seas (Topnienie czapy lodowej na Grenlandii wpływa na zakwity i wzrost biomasy glonów w morzach)

  There is no doubt that biological processes in polar regions are dependent upon strong seasonality. The presence of polar day and polar night and the resulting delivery of sun energy regulate primary production in the seas. Algal blooms during polar summer are crucial since all trophic networks depend upon this peculiar process. In simple … Continue reading

Hidden microworld – anoxic zones on the surface of glaciers (Ukryty mikroświat – strefy bez tlenu na powierzchni lodowców)
science

Hidden microworld – anoxic zones on the surface of glaciers (Ukryty mikroświat – strefy bez tlenu na powierzchni lodowców)

So far, the surface of glaciers was regarded as only aerobic zones due to high biomass and production of algae. On the white surface of ice shimmering in the sunlight we can see dark wind-transported dust, cryoconite holes (water-filled depressions in the ice with dark sediments on their bottom), sometimes ponds, cracks or wells. Would … Continue reading

Mineral dust on the Greenland Ice Sheet originates even from distant tropical places (Pył mineralny na czapie lodowej na Grenlandii pochodzi nawet z dalekich tropikalnych miejsc)
science

Mineral dust on the Greenland Ice Sheet originates even from distant tropical places (Pył mineralny na czapie lodowej na Grenlandii pochodzi nawet z dalekich tropikalnych miejsc)

Pollutants, microbes and dust are passively migrating along with the wind. This dust is important in the formation of cryoconite holes – water-filled reservoirs on the surface of glaciers. How does it work? Dark dust on ice is called cryoconite and it is transported along with the wind onto a glacier’s surface. Along with pigmented … Continue reading