Speaker, Consultant, Expert, Sciences Sociales, environnementales, climatiques, écologiques, RSE, Sustainability, Stratégie, Executive Coaching, bilingue.
Paris (France)
Joined May 2011
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- Following2K
- Followers1.7K
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Pinned Tweet
Crises écologiques ou crises des droits humains ? linkedin.com/pulse/crises-%2… via @LinkedIn
Calvo Constant retweeted
Wikipedia is the largest encyclopedia ever written by humans—and it is likely to hold that title for ever. (Any future rival is sure to be made with the help of AI) bit.ly/4iO1Sum
Illustration: Carl Godfrey
Calvo Constant retweeted
Not only are fossil-fuel companies killing people with pollution and helping to destroy the conditions for life on this planet, they absolutely flourish when there’s war.
Has there ever been a more demonic industry?
Calvo Constant retweeted
"How a Secret Vote by U.N. Scientists Legitimized Carbon Capture and Skewed Decades of Climate Policy" via @propublica: propublica.org/article/carbo…
De la convergence de l'IA et l'Anthropocène linkedin.com/pulse/de-la-con… via @LinkedIn
Calvo Constant retweeted
In 2025, global CO₂ concentration rose to a record 426.8 parts per million. That's 153% of pre-industrial levels.
Every additional ppm traps more heat and supercharges the ocean and the atmosphere.
🔗 Read the WMO Greenhouse Gas Bulletin: bit.ly/4iIqwMR
Dividende écologique: les salariés acteurs de la transformation linkedin.com/pulse/dividende… via @LinkedIn
Calvo Constant retweeted
We are approaching the warmest global surface air temperature anomaly on record (1.15C on Nov 18 2023) as record El Niño approaches peak: pulse.climate.copernicus.eu/
Calvo Constant retweeted
Excited to announce my next book, #ComingBacktoEarth, due out in April 2028 from @BasicBooks/@HachetteUS/@Public_Affairs publishing:
Calvo Constant retweeted
We just published the 2026 State of the Climate Report. Of 16 planetary vital signs spanning greenhouse gas concentrations, temperatures, the oceans, ice, energy balance, and wildfire, 7 (44%) are currently at record extremes. Read report here: doi.org/10.1093/biosci/biag1…
Calvo Constant retweeted
Scientists worldwide: We invite you to sign the World Scientists’ Warning to Humanity: A Third Notice. 35 years after the first warning, we now declare a planetary emergency. If you are a scientist, please read, sign, and share. Go to this link: docs.google.com/forms/d/e/1F…
Calvo Constant retweeted
The Scientist's Warning is a film about a researcher who started a movement of scientists to turn knowledge into action- a story of scientists all over the world awakening to the need to become advocates for the fate of the planet & humanity.
youtu.be/byXGCPo-80w via @YouTube
Calvo Constant retweeted
🌍 “This is no longer a warning for the future; it is a diagnosis of the present.” Our 2026 State of the Climate report finds 7 of 16 planetary vital signs at record extremes. The planetary emergency is already here.
doi.org/10.1093/biosci/biag1…
Calvo Constant retweeted
Today, most greenhouse gas emissions can be traced to five key sectors:
⚡ Energy
🌽 Agriculture
🏭 Industrial processes
🗑️ Waste
🌲 Land use, land-use change and forestry
#ClimateWatch breaks it down: go.wri.org/ghg-charts-tw
L'écologie, concept pluriel, transversal, évolutif linkedin.com/pulse/l%25C3%25… via @LinkedIn
Calvo Constant retweeted
Artificial intelligence is changing education. But what does that mean for teachers?
@UNESCO's AI Competency Framework for Teachers sets out 15 competencies across five key areas, including AI ethics, pedagogy and a human-centred approach.
The goal? To help teachers harness AI while keeping human agency and teachers’ rights at the heart of education.
📘 unesco.org/en/articles/ai-co… #WorldTeachersDay
Calvo Constant retweeted
Plastic pollution threatens human health, affects food and water safety, burdens economic activities, and contributes to climate change.
🌊 Our Issues Brief explains how we can tackle #PlasticPollution.
➡️ bit.ly/3nHUxTc @IUCN_Plastics
L'odyssée de la reconnaissance du crime environnemental linkedin.com/pulse/lodyss%25… via @LinkedIn
La place des sciences de la Terre dans le débat climatique linkedin.com/pulse/la-place-… via @LinkedIn
Calvo Constant retweeted
🤝 The #ParisAgreement was never designed to solve climate change on its own.
But it remains critical for setting global ambition, shaping national climate action and tracking progress. Here’s what Paris can and cannot deliver: bit.ly/46g8lXU
