Why did I start MPE2013? Maybe because I am a dreamer… I love nature, I love mathematics and I am concerned with the planet. My own research is not in applied mathematics, but I like popularizing mathematics and when I do so, I usually present themes that are far from my own research. Indeed, one of my role as scientist is to “digest” research papers, to extract the ideas and to explain then in simple terms how mathematics is developing within science around us. From the beginning, the theme of Mathematics of Planet Earth appeared to me as very rich. Now, four years after I started MPE2013, the theme appears as immense and one of my rewards for coordinating MPE2013 is to continuously learn new MPE topics. At the same time, I am becoming more militant for the planet. In this note, I will describe to you some of facets ofMPE that I have discovered with the hope that you will yourself get interested in the mathematics behind discovering, understanding, organizing and protecting our planet.
To help exploring “Mathematics of Planet Earth” we often divide it into four themes: