What is climate variability? An example of weather variation. The butterfly effect. Sensitivity to initial conditions in the chaos theory. Why does the global temperature of the Earth vary? What

Juliette Mignot explains the natural climate variability. She highlights the methods that try to model it, with the El Niño example. On the basis of the encountered difficulties, she underlines that

Over the last century, our understanding of variability in the speech signal has undergone a variety of changes. Once regarded as noise in the signal, it has now become a major topic of investigation

In this lecture, I will talk about respiration, a biological rhythm which is flexible and adaptable and crucially involved in speech production, perception and face-to-face interactions. Based on

What is the Holocene? What caused this Climate Optimum during the Holocene? How do we know that the African Humid Period occurred during the Holocene Climate Optimum? Were there been other warm

Projections of future climate change rely on global climate models. Such models simulate the dynamics and physics of the coupled atmosphere-ocean system and move towards models of the full Earth

At hemispheric scale, the surface temperature is strongly influenced by the 28 variations of the natural (solar and volcanic) and anthropogenic (land-use, sulphate aerosols, greenhouse gas

Data show that climate has always changed in the past, sometimes with a larger amplitude than what we experimented for two decades. But the main signatures of the anthopogenic forcing are the speed of

Processing variability in L2 learning: insights from articulatory training / Natalia Kartushina, Clara Martin, in colloque "Bilingualism vs. monolingualism: a new perspective on limitations to L2

Serge Planton talks about the natural sources of climate variability, like the "internal" climate variability, volcanism or the energy transmitted by the Sun. He compares these natural factors with