Using krypton gas to date the age of ancient ice cores

Sune O. Rasmussen, A. Svensson and M. Polar ice cores reveal past climate change in ever-growing temporal resolution. Novel automated methods and improved manual annual layer identification allow for bipolar year-to-year investigations of climate events tens of thousands of years back in time. Ice cores from Antarctica, from the Greenland ice sheet, and from a number of smaller glaciers around the world yield a wealth of information on past climates and environments including unique records of past temperatures, atmospheric composition for example greenhouse gasses , volcanism, solar activity, dustiness, and biomass burning. Some ice-core records from Antarctica extend back in time more than , years Jouzel et al.

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Alex turner dating history

Founded a year and a half ago, Wingman offers the denizens of airports and aeroplanes to pick and choose which of their fellow skyfarers may have wings as a potential partner. Y ou can upload an image of yourself, list your age and interests, and let others know if you’re flying for ‘business’ or ‘pleasure’. I f you match, you can chat, and see if you can eventually get a relationship off the ground. Gluten-Free Singles does what it says on the tin. F or those whose lives are gluten-governed, it’s the perfect place to find a kindred what-shunning spirit. As ridiculous as it sounds, Tindog is the inevitable portmanteau creation of Tinder and, well, dog.

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