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Nombre de programmes trouvés : 3590

Vidéocours

le 05/06/2015 (6m37s)

EN-7. Climate variability modelling

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 this variability is an uncertainty source for the climate modelling.

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Vidéocours

le 27/05/2015 (8m52s)

EN-8. Long-term climate outlook: breaking points and irreversibility

Didier Paillard leans on the past climate variations to evidence the different time scales and the great mechanisms linked to the climate variations. He also shows the existence, in the climate, of rupture phenomena.

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Vidéocours

le 20/04/2015 (9m34s)

EN-1. Quantifying climate problems

Nadia Maïzi talks about some key notions we have to know to really understand the climate negotiation: the choice of indicators, the diversity of greenhouse gases, the evolution of their emissions in the atmosphere and the contribution of the different countries groups to these emissions.

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Vidéocours

le 20/04/2015 (9m34s)

EN-2. Grounding emissions trajectories: a political process

Nadia Maïzi explains what the emissions trajectories of greenhouse gases are, from the Business as usual scenario to the scenarios that are associated to the 2°C objective. She discusses about the interpretation of these trajectories and about the different climatic and political temporalities.

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Vidéocours

le 20/04/2015 (11m36s)

EN-3. Drawing up desirable, plausible and supportable technological avenues

Nadia Maïzi presents the two main kinds of approach that can be used for the climate negotiation: the top-down approach, which dominated with the Kyoto Protocol, and the bottom-up approach, which the current negotiation is contructed on. To understand this, she shows their involvements for the different groups of countries of the world.

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Vidéocours

le 20/04/2015 (11m51s)

EN-4. Pinpointing the commitments compatible with the 2°C climate target

Nadia Maïzi presents a model that enables to check the compatibility of the voluntary commitments sent by the states on the occasion of the COP 21 with the 2°C objective.

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Vidéocours

le 20/04/2015 (10m30s)

EN-6. Finding the technological conditions for a smart energy transition

Nadia Maïzi talks about the technical feasibility of an energy transition. She gives the exemple of La Réunion island, which wants to be 100% renewable in 2030. Thanks to a simulation model, she shows to what extent such a goal could be achieved.

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Vidéocours

le 07/07/2015 (8m54s)

EN-1. Introduction to the regional impacts of climate change

Pierre Tulet recounts the reality of climate change and defines several notions like the risk, the vulnerability and the resilience. Then he presents the five main fields of preoccupation that are linked to the climate change, showing, for each of them, the thresholds of atmospheric temperature increase that should not be overstepped.

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Vidéocours

le 27/04/2015 (6m58s)

EN-2. Droughts and water resources across France

Eric Martin defines the different kinds of droughts and shows the past, current and future tendencies of these phenomena. He relates several key parameters like the rainfall, the evapotranspiration and the thaw to understand what is expected in the next decades, on the France scale.

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Vidéocours

le 02/06/2015 (9m25s)

EN-3. Climate change in the French Alps: impacts on the climate, snow coverage and avalanche risk

Daniel Goetz highlights the recent climatic evolutions, on the french Alpine massif scale. Then he presents the results of models simulating the evolutions of several factors like snow coverage and avalanche risk, short-term and in the medium term.

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