Jean-Marc Jancovici
French engineer and energy climate specialist

Jean-Marc Jancovici (born 1962) is a French engineering consultant, energy and climate expert, professor, conference speaker, writer, and independent columnist. He is a co-founder and associate at the Carbone 4 consultancy firm, and the founding president of the think-tank The Shift Project.
Biography
He graduated from the École polytechnique in 1984 and from the Ecole nationale supérieure des télécommunications de Paris in 1986.
He is the author and the main developer of the main French carbon accounting method, the Bilan Carbone assessment tool for the French Inter-ministerial Greenhouse Gas Mission.
He collaborated with Nicolas Hulot for 11 years, and co-authored the Pacte écologique, a book that directly led to the Grenelle Environnement during the first years of Nicolas Sarkozy's presidency. He is a member of the SOeS Scientific Committee (MEEDDEM observation and statistics department) and a member of the Fondation Nicolas-Hulot Strategic Committee.
He is the founding president of The Shift Project, a corporate-sponsored think tank established in 2010, which advocates a progressive phase-out of fossil fuels from our economy.
In 2007, he founded the Carbone 4 consultancy with the economist Alain Grandjean. Carbone 4 is a Paris-based consultancy employing around 30 people, which has specialized in adapting human activities (especially economic activities) to any kind of energy constraint (lack of oil, lack of gas, lack of electricity, rising prices, rising constraints on greenhouse gas emissions, new norms or regulations, etc.)
According to him, the current model of Western societies is doomed to decline because it relies on fossil fuels that no alternative could replace identically in terms of quantity or availability. To maintain a certain level of development, he proposes, in particular, focusing on nuclear energy in addition to developing renewable energies (even if he defends the idea of a moratorium on the latter), a proposal that has attracted various criticisms.
“Jean-Marc Jancovici” enters the record as french engineer and energy climate specialist. Crown Archives preserves that source wording while asking what Jean-Marc, Jancovici and French can confirm, complicate or overturn.
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The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Sep 6, 2026. The linked authority identifier is Q3167397. VIAF identifies the subject as 64189671. The Library of Congress control number is n2002159515. 1 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1962, 1984, 1986 and 2010.
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