You may know that the carbon dioxide we humans release is changing the climate. Fewer are aware that it is also changing the chemistry of seawater. About a third of the CO2 we emit is taken up by the oceans, where it lowers the water’s pH. That has consequences for marine ecosystems.
Orrefjell mountain, in Salangen valley, Northern Norway, has one of Norway’s largest uranium deposits. The area is used for recreation and as pastureland for rough grazing animals, and the catchment area to the south is settled, with farms and houses. What does it mean to live on a mountain of uranium?
A tiny sleeping beauty from the ocean depths is the key player in the spring bloom – the most fascinating processes in Arctic waters. Rising ocean temperatures may put this ecosystem clockwork at risk.
After the discovery that pesticides and industrial chemicals can spread to every corner of the world and harm wildlife, many were banned. For some, environmental levels fell quickly. But effects depend not just on levels, but also on interactions with other stressors. We need to understand these links.
The Arctic ocean is warmest when the air in the Arctic gets colder. This is when the sea ice north of Svalbard decreases. Researchers found changes in the physical marine environment that was so great that the ecosystems north of Svalbard had changed.
Wildlife may partly buffer changing environmental conditions by adjusting their behaviour. Over thousands of years in a hostile environment, the wild Svalbard reindeer have developed strategies to cope with severe winter feeding conditions. How are they responding to increasingly rainy and icy winters?
Designing management strategies for ice-covered Arctic waters under variable environmental conditions is challenging, and becomes even more so when decision-making also involves consideration of variable environmental values. New methods are needed for integrated management of a dynamic marine Arctic.
Svalbard’s polar bears, which belong to the Barents Sea population, were hunted intensively up to protection in 1973. After that, the population recovered significantly. But in more recent years, sea ice loss in this area has been more severe than in any other polar bear habitat. How are they doing now?
The Soviet research vessel "Sevastopol" arrived in Bergen on 16 February 1958. On board were eight scholars who were to resume the marine research cooperation that Norway and Russia had established before the Russian Revolution of 1917. Half a year later, Norwegian oceanographers returned the favour by visiting Murmansk.
Pest insect outbreaks in the subarctic birch forest of northern Norway are among the most abrupt and large-scale ecosystem disturbances attributed to recent climate change in Europe. But such outbreaks have occurred regularly as far back as historical records go. What is new and why are moth outbreaks a cause of concern?