On September 25, Frédérique Bec from Théma (University of Cergy-Pontoise), Anders Rahbek (University of Copenhagen) and myself organized a workshop in our ESSEC campus in La Défense.
Among the presenters, who were mostly working on theoretical models for time series, Jesus Gonzalo (Universidad Carlos III, Madrid) showed us some interesting results based on a series of daily temperature recordings in a station in Oxfordshire, UK.
The interesting feature of this temperature series is that it is consistent: measurements have been performed using a similar technique since the 18th Century. This is great as often, studies on long term temperatures face issues dealing with data compatibility over time.
One of the conclusion of Jesus Gonzalo's work (joint with Lola...
Here is a post that I wrote for ESSEC Knowledge in October 2014. It is still up to date!
When Claude Allegre published his book L’imposture climatique (The Climatic Fraud) in 2010, he questioned mankind’s role in global warming. Today, few scientists would doubt that man has played a major role in climate change. It might seam obvious: since the industrial revolution, we have produced huge amounts of gases. Meanwhile, global temperatures have risen.
That said, over the last fifteen years, the rise in temperatures appears to have slowed or paused. This is little known to the general public – we sometimes call it a global warming hiatus. Several explanations have been proposed for this slowdown: it could be due to a cyclical reduction in solar activity or an i...