Depicting a cause-and-effect scenario that spans thousands of miles, a scientist at Scripps Institution of Oceanography at UC San Diego and his collaborators discovered that ocean waves originating along the Pacific coasts of North and South America impact Antarctic ice shelves and could play a role in their catastrophic collapse. Peter Bromirski of Scripps Oceanography [...]

(PhysOrg.com) — A new University of California, Davis, study by a top ecological forecaster says it is harder than experts thought to predict when sudden shifts in Earth’s natural systems will occur — a worrisome finding for scientists trying to identify the tipping points that could push climate change into an irreparable global disaster. “Many [...]

Foundation Comment: If you do not wish to leave a personal comment on this News Posting, why not share it via your Twitter / FaceBook / MySpace or other media sites – you never know someone in your sphere of influence may just NEED to know about this featured release – Click the SHARE THIS [...]

A new study examines how ice sheets, such as the West Antarctic Ice Sheet, could become unstable as the world warms. The team from Oxford University and Cambridge University developed a model to explore how changes in the ‘grounding line’ — where an ice sheet floats free from its base of rock or sediment — [...]

3 time-lapsed photos show the incredible disintegration of the Filchner ice shelf in Antarctica. Within a 24-hour space, an area of sea ice larger than the state of Rhode Island broke away from the Ronne-Filchner Ice Shelf and shattered into many smaller pieces. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua and Terra satellites [...]

A Special Feature of the Proceedings of the National Academy of Sciences presents the latest scientific insights on so-called tipping elements in the planetary environment. These elements have been identified as the most vulnerable large-scale components of the Earth System that may be profoundly altered by human interference. If one or more of those components [...]

Recent observations of the West Antarctic Ice Sheet document rapid changes in the mass balance of its component glaciers. These observations raise the question of whether changing climatic conditions have triggered a dynamical instability in the ice-sheet–ice-shelf system. The dynamics of marine ice sheets are sensitive to grounding-line position and variation, characteristics that are poorly [...]

There has been lots of talk lately about Antarctica and whether or not the continent’s giant ice sheet is melting. One new paper 1, which states there’s less surface melting recently than in past years, has been cited as “proof” that there’s no global warming. Other evidence that the amount of sea ice around Antarctica [...]

A major Antarctic glacier has passed its tipping point, according to a new modelling study. After losing increasing amounts of ice over the past decades, it is poised to collapse in a catastrophe that could raise global sea levels by 24 centimetres. Pine Island glacier (PIG) is one of many at the fringes of the [...]

By Bob Williamson – Chair & Founder of the Greenhouse Neutral Foundation Lately I have been asked what my take is on the extreme storms in the northern hemisphere and what my OPINION is, on the claims that the world is now entering a period of global cooling. Well everyone who knows me knows I [...]