Is Arctic sea ice recovering? January 10, 2014.
Last year might have been the hottest year ever recorded by our instruments. Average global temperatures were at least 0.27° C warmer than the average between 1981 and 2010, which was in turn up from the preindustrial norm. Overall, the past 17 years has been very warm, and since 2002 temperatures have been consistently well above the 1981-2010 average. However, that consistency is not clearly reflected in Arctic sea ice trends. In fact, the winter extent of Arctic sea ice has expanded in the last two years, seemingly defying projections of its imminent collapse. More
Climate, crisis, and causality in the Bronze Age. December 4, 2014.
In Europe, the “Bronze Age” lasted nearly 2,000 years, from approximately 3200 BCE to roughly 600 BCE. In this period, bronze tools were forged for the first time, revolutionizing how Europeans manipulated their world and competed for resources. The first trading networks connected the continent, as navigational knowledge reached heights that Europeans would not exceed until the fifteenth century. Centralized “palace economies” flourished throughout Europe and the Middle East, in ancient civilizations we remember today: on Minoan Crete, in Mycenaean Greece, in the Mesopotamian conquests of the Hittites and Akkadians, and of course in Egypt. More
A conversation with Dr. Michael Mann. November 17, 2014.
Dr. Michael Mann is one of the world's best-known climate change scholars. He is the director of the Earth System Science Centre at Pennsylvania State University, where he pioneers innovative methods for reconstructing past climate change. Mann is the author of more than 160 peer-reviewed publications and two books, and he is the founder of the popular climatology blog RealClimate. On Twitter, he is followed by nearly 23,000 people.
For these reasons, we asked Dr. Mann to give an interview that would launch a new "Interviews" section of HistoricalClimatology.com. We are grateful that he took the time to answer our questions. More
How should we measure climate change? October 11, 2014.
Last month, world leaders met at UN Headquarters in New York City for Climate Summit 2014. As protests raged across the globe, diplomats established the framework for a major agreement next year. The aim will be to limit anthropogenic warming to no more than 2 °C, a threshold established by scientists and policymakers, beyond which climate change is increasingly dangerous and unpredictable. More
A scientific expedition to Southeast Greenland. September 9, 2014.
The Greenland ice sheet is melting fast, and it contains enough water to raise global sea levels by over seven meters if it were to disappear entirely. However, thousands of years ago the ice sheet was much larger, with a total of 12 metres ice-equivalent sea-level. There are many questions that remain unanswered about how Greenland lost all this ice from past to present. For example: how and where did the Greenland ice sheet lose mass? What climate history resulted in such a drastic change in the ice sheet? More
Featured Image, December 2014:
"Augpilagtoq - a remote village," taken by PhD Candidate Benoit S. Lecavalier during a research trip to Southeast Greenland, Summer 2014.
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