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Leo Hickman

Verified
London
As seen in: Carbon Brief, MSN UK, The Guardian, Der Tagesspiegel, Sydney Morning Herald, Agenda (World Economic Forum), Eventbrite Blog, Mother Jones, Yahoo Style Canada, Tree Hugger, EcoWatch and
Director/editor of @CarbonBrief. Served 16 years at the Guardian. Author of A Life Stripped Bare, The Final Call, Will Jellyfish Rule the World?...
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Articles

Prof Detlef van Vuuren: The climate scientist most cited by the IPCC

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By Leo Hickman Verified, Joe Goodman Verified, Tom Prater Verified
| Carbon Brief Verified
Detlef van Vuuren is one of the world’s leading climate modellers. He has been involved in coordinating several key modelling exercises, with one high-profile emissions scenario – “RCP8.5” – being recently targeted as “wrong, wrong, wrong” by Donald Trump.
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Prof Philippe Ciais: The world’s most highly cited climate scientist

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By Leo Hickman Verified, Joe Goodman Verified, Tom Prater Verified
| Carbon Brief Verified
Phillipe Ciais has spent almost four decades researching the planet’s carbon cycle – and the ways in which humans have been impacting its balance. Based at the Laboratoire des Sciences du Climat et de l’Environnement (LSCE) on the outskirts of Paris, Ciais (pronounced “see-es”) has been listed as an author on almost 1,300 peer-reviewed studies. In fact, analysis of Carbon Brief’s Cosmos database reveals that – by some distance – he is the most highly cited climate scientist in the world.
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Project Cosmos – the world’s largest database of climate change research

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By Leo Hickman Verified, Robert McSweeney Verified, Ayesha Tandon Verified
| Carbon Brief Verified
Welcome to the Project Cosmos homepage. The project was launched by Carbon Brief in June 2026 following an 18-month research and development effort. The aim: to build the world’s largest database of climate change research. Containing more than 1.8 million unique publications linked by 40 million citation relationships, the Cosmos database represents the most complete and expansive mapping of human knowledge on climate change ever assembled.
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