In the 20th century, global sea level rose faster than at any other time in the past 3,000 years. It’s expected to rise even further by 2100, as human-induced climate change intensifies. In fact, some studies predict a rise of up to 1.6 metres and possibly more due to the rapid melting of the Antarctic ice sheets.

The detection of energy signals from strong winter storms in the North Atlantic Ocean which travel through the Earth’s core could enhance understanding of our solar system, according to new research from The Australian National University (ANU).

The ANU seismologists used two 50-by-50-kilometre spiral arrays in Australia to detect PKP waves, which are core waves generated by cyclones in the North Atlantic that move through the Earth’s centre to Australia during the Australian summer.

The study identified two key regions in Greenland and Newfoundland as sources of these seismic signals generated by ocean waves.

During the first few weeks of the Denman Marine Voyage, we’ve seen sea ice in a variety of shapes and forms. Many of us stood at the windows of the observation lounge to see the RSV Nuyina first glide from the open ocean into a thick covering of sea ice. Since then, we have seen different types of sea ice, from newly-formed ice to thicker, older floes that shake the ship when we collide with it.