One of the regions that has experienced most warming over the second half of the 20th century is the Potter Peninsula on King George Island in Antartica. It is here that Marc Oliva and his collaborators are studying what the effects of the warming conditions on the geomorphological processes prevailing in these environments. “Permafrost is present almost down to sea level in the South Shetland Isl ...[Read More]
GeoCinema Online: The Geological Storage of CO2
Welcome to week two of GeoCinema Screenings! In a time when we can’t escape the fact that anthropogenic emissions are contributing to the warming of the Earth, we must explore all the options to reduce the impact of releasing greenhouse gases into the atmosphere. The three films this week tackle the challenge of separating CO2 from other emissions and then storing it in geological formations deep ...[Read More]
Geosciences Column: The Toba eruption probably did have a global effect after all
Almost everyone has heard of the Toba super-eruption, which took place on the island of Sumatra roughly 74,000 years ago, but the only evidence of tephra or tuff (volcanic fragments) from the eruption is in Asia, with nothing definite further afield. It has sometimes been thought that this huge eruption may have led to a volcanic winter, a period of at least several years of low temperatures follo ...[Read More]
Imaggeo on Mondays: Entering a frozen world
Dmitry Vlasov, a PhD Student and junior scientist from Lomonosov Moscow State University, brings us this week’s Imaggeo on Mondays. He shares his experience of taking part in a student scientific society expedition to Lake Baikal. This picture shows icy shores of Lake Baikal – a UNESCO World Heritage Site and the world’s largest natural freshwater reservoir (containing about one fifth of Ear ...[Read More]