Démographie

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La démographie est l’étude quantitative et qualitative des caractéristiques des populations et de leurs dynamiques, à partir de thèmes tels que la natalité, la fécondité, la mortalité, la nuptialité (ou conjugalité) et la migration. Source : wikipedia

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theguardian.com

2025

Activist tells Swedish officials she has been subjected to harsh treatment, including insufficient food and water
EU officials warn climate breakdown and wildlife loss ‘are ruining ecosystems that underpin the economy’ […] The European way of life is being jeopardised by environmental degradation, a report has found, with EU officials warning against weakening green rules. The continent has made “important progress” in cutting planet-heating pollution, according to the European Environment Agency, but the death of wildlife and breakdown of the climate are ruining ecosystems that underpin the economy.
The planet is nearing dangerous limits. Yet progress on clean energy shows what’s possible. With political will, cooperation can still avert the worst of the climate crisis
Une commission d’enquête des Nations unies a désormais confirmé ce que les organisations israéliennes, palestiniennes et internationales de défense des droits humains, ainsi que de nombreux spécialistes du génocide, affirmaient déjà : la guerre menée par Israël à Gaza équivaut à un génocide. La commission estime que les massacres, les attaques contre les infrastructures vitales, la famine, les déplacements de population et le refus de soins médicaux répondent à la définition juridique du crime le plus grave de l’histoire. Elle conclut que l’intention génocidaire est « la seule conclusion raisonnable » à tirer des déclarations des dirigeants israéliens et du comportement de leurs forces à Gaza.
Report cites scale of killings and aid blockages, and calls on member countries to punish those responsible
Legal analysis has accused Israel of committing genocide in four out of five categories as defined by 1948 convention
A UN commission has found Israel’s war in Gaza ranks among history’s greatest crimes. The UK government must stop hiding behind legal fictions and recognise the reality
Climate.gov, which went dark this summer, to be revived by volunteers as climate.us with expanded missionEarlier this summer, access to climate.gov – one of the most widely used portals of climate information on the internet – was thwarted by the Trump administration, and its production team was fired in the process.
Trump’s dictator-like behaviour is so brazen, so blatant, that paradoxically, we discount it. But now it’s time to call it what it is
Gains in cutting deaths from tuberculosis at risk as health officials warn clinics forced to ration drugs and testing
Scientists say ‘shocking’ discovery shows rapid cuts in carbon emissions are needed to avoid catastrophic fallout
Suspension of Soy moratorium could open up area of rainforest the size of Portugal to destruction
The long read: Churning quantities of carbon dioxide into the atmosphere at the rate we are going could lead the planet to another Great Dying
Some experts tee up public comment on EPA report calling fossil fuel concerns overblown, as others fast-track review
Almost 100 countries reject draft treaty as ‘unambitious’ and ‘inadequate’
An epic analysis of 5,000 years of civilisation argues that a global collapse is coming unless inequality is vanquished
Writer says for many years he has refused to use word but now must ‘with immense pain and with a broken heart’
Exclusive: Increasingly extreme weather a threat to production and supply chains in Britain and elsewhere
Exclusive: Study claims sites previously ranked first can lose 79% of traffic if results appear below Google Overview
Healthy environment a human right, UN court says in landmark climate ruling
António Guterres says ‘sun is rising on a clean energy age’ as 90% of renewable power projects cheaper than fossil fuels
Heat caused 2,300 deaths across 12 cities, of which 1,500 were down to climate crisis, scientists say
Research in Chile suggests climate crisis makes eruptions more likely and explosive, and warns of Antarctica risk
Forever chemicals have polluted the water supply of 60,000 people, threatening human health, wildlife and the wider ecosystem. But activists say this is just the tip of the Pfas iceberg
Rapporteur calls for defossilization of economies and urgent reparations to avert ‘catastrophic’ rights and climate harms
Extreme heat ‘the new normal’, says UN chief, as authorities across the continent issue health warnings
Economic assumptions about risks of the climate crisis are no longer relevant, says the communications expert Genevieve Guenther
For more than three decades, Brazilian climate scientist Carlos Nobre has warned that deforestation of the Amazon could push this globally important ecosystem past the point of no return. Working first at Brazil’s National Institute for Space Research and more recently at the University of São Paulo, he is a global authority on tropical forests and how they could be restored.
The Kenyan marine ecologist David Obura is chair of a panel of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), the world’s leading natural scientists. For many decades, his speciality has been corals, but he has warned that the next generation may not see their glory because so many reefs are now “flickering out across the world”.
The world has been too optimistic about the risk to humanity and planet – but devastation can still be avoided, says Timothy Lenton
Despite working on polar science for the British Antarctic Survey for 20 years, Louise Sime finds the magnitude of potential sea-level rise hard to comprehend
A subreddit tracking apocalyptic news in a calm, logical way comforts users who believe the end The threat of nuclear war, genocide in Gaza, ChatGPT reducing human cognitive ability, another summer of record heat. Every day brings a torrent of unimaginable horror. It used to be weeks between disasters, now we’re lucky to get hours.
Pourquoi la guerre nucléaire, et non la crise climatique, est la plus grande menace qui pèse sur l’humanité, selon Mark Lynas Mark Lynas a passé des décennies à faire pression pour que l’on agisse sur les émissions de gaz à effet de serre, mais il affirme aujourd’hui que la guerre nucléaire est une menace encore plus grande.
Iran’s parliament approved a measure to close the vital global trade route, through which more than a fifth of the world’s oil supply passes through daily
New data from Nasa has revealed a dramatic rise in the intensity of weather events such as droughts and floods over the past five years.The steepness of the rise was not foreseen. The researchers say they are amazed and alarmed by the latest figures from the watchful eye of Nasa’s Grace satellite, which tracks environmental changes in the planet.
When a small Swedish town discovered their drinking water contained extremely high levels of Pfas, they had no idea what it would mean for their health and their children’s future
False claims obstructing climate action, say researchers, amid calls for climate lies to be criminalised
Les scientifiques ont déclaré aujourd’hui que les océans de la planète sont en plus mauvaise santé qu’on ne le pensait, tout en avertissant qu’une mesure clé montre que nous « manquons de temps » pour protéger les écosystèmes marins. L’acidification des océans, souvent appelée le « jumeau maléfique » de la crise climatique, est causée par l’absorption rapide du dioxyde de carbone par les océans, où il réagit avec les molécules d’eau, entraînant une baisse du pH de l’eau de mer. Elle endommage les récifs coralliens et d’autres habitats océaniques et, dans les cas extrêmes, peut dissoudre les coquilles des créatures marines.
Breaching threshold would ramp up catastrophic weather events, further increasing human suffering
Mark Lynas has spent decades pushing for action on climate emissions but now says nuclear war is even greater threat Climate breakdown is usually held up as the biggest, most urgent threat humans pose to the future of the planet today. But what if there was another, greater, human-made threat that could snuff out not only human civilisation, but practically the entire biosphere, in the blink of an eye?