Every year, a new growth layer is added to the narwhal’s spiralled tusk. The individual layers act as an archive of data that reveals what and where the animal has eaten, providing a glimpse of how the ice and environmental conditions have changed over its long life span (up to 50 years).

Climate change is more pronounced in the Arctic than anywhere else on the planet, raising concerns about the ability of wildlife to cope with the new conditions. A new study shows that rare insects are declining, suggesting that climatic changes may favour common species.

Scientists are combining artificial intelligence and advanced computer technology with biological know how to identify insects with supernatural speed. This opens up new possibilities for describing unknown species and for tracking the life of insects across Space and time.

New study uses museum collections and citizen-science observations to document how climate change affects the phenology of Danish hoverflies.

Areas of the planet home to one-third of humans will become as hot as the hottest parts of the Sahara within 50 years, unless greenhouse gas emissions fall, according to research by an international team of scientists with participation from Aarhus University published in the journal Proceedings of the National Academy of Sciences this week. The rapid heating would mean that 3.5 billion people would live outside the climate ‘niche’ in which humans have thrived for 6,000 years.

Professor Bo Barker Jørgensen fra Aarhus Universitet bliver medlem af verdens mest ansete videnskabelige akademi, det amerikanske National Academy of Sciences. Akademiet inviterer forskere med markante resultater, og det er en helt enestående anerkendelse at være blandt de inviterede.

New research by an international team of scientists reveals that endangered North Atlantic right whales are in much poorer body condition than their counterparts in the southern hemisphere. The alarming results from this research, led by Dr Fredrik Christiansen from Aarhus University in Denmark, were published this week in the journal Marine Ecology Progress Series.

A Danish-German research collaboration may have found a solution to the large climate impact from the world's rice production: By adding electric conductivel cable bacteria to soil with rice plants, they could reduce methane emissions by more than 90%.