Are they landing marks for aliens? Craters from World War II bombs? The first pictures, which appeared in 2008 after being taken by a tourist, showed some strange circular formations in the shallow…

A group of researchers say they have established a new biomarker for how stressed polar bears are about climate change.     Last year, a team reported that fluctuations in climate and ice…

Near the center of Antarctica, measurements from CryoSat - which exists to make comprehensive measurements of the polar regions in an unusually high-inclination orbit and latitudes of 88° north and…

Marine cyanobacteria are tiny ocean plants that produce oxygen and make organic carbon using sunlight and CO2, and so they are primary engines of Earth's biogeochemical and nutrient cycles. They…

Pine Island Glacier is one of the biggest routes for ice to flow from Antarctica into the sea and the floating ice shelf at the glacier's tip has been melting and thinning for the past four decades,…

An international team of scientists predicts that seafloor dwelling marine life will decline by up to 38 percent in the North Atlantic and over five percent globally over the next century, due to…

A new aquifer in the Greenland Ice Sheet holds liquid water all year long in the otherwise perpetually frozen winter landscape. And it's big - 27,000 square miles.  The reservoir is a "perennial…

There has been a snowfall decrease in Canada's subarctic regions and that has led to worrisome desiccation of the regions' lakes - this has happened in the past also, of course, but it was less…

Basic ocean conditions such as current directions and water temperature play a huge role in determining the behavior of young migrating salmon as they move from rivers and hit ocean waters for the…

Climate understanding of the past is based primarily on ice cores.  By studying information about Earth's climate and greenhouse gases  in past, scientists can understand better how…