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Paranthropes, australopithèques, néandertaliens… Plus nous en apprenons sur les homininés, plus il devient difficile de définir ce qu’est un être humain, relève “New Scientist”.

The story of Greenland keeps getting greener—and scarier. A new study provides the first direct evidence that the center—not just the edges—of Greenland's ice sheet melted away in the recent geological past and the now-ice-covered island was then home to a green, tundra landscape.

À la veille des élections, des scientifiques mènent des actions dans la capitale pour alerter sur les risques climatiques. Les rapports alarmants sur le climat se multiplient, mais le monde politique n’en tient pas suffisamment compte aux yeux des scientifiques. Pour mieux se faire entendre, des chercheurs et académiques belges et internationaux ont donc décidé, en cette veille d’élections, d’opter pour la désobéissance civile.

Ce matin une vingtaine de scientifiques ont bloqué les entrées de la Commission européenne afin de réclamer la décroissance vue comme “la seule option pour sortir de l’impasse sociale et environnementale”

Human-caused climate crisis brought soaring temperatures across Asia, from Gaza to Delhi to Manila

Exclusive: Survey of hundreds of experts reveals harrowing picture of future, but they warn climate fight must not be abandoned

Exclusive: Planet is headed for at least 2.5C of heating with disastrous results for humanity, poll of hundreds of scientists finds

If the anomaly does not stabilise by August, ‘the world will be in uncharted territory’, says climate expert

Over the past year, there has been a vigorous debate among scientists – and more broadly – about whether global warming is “accelerating”.

An international team of scientists has warned against relying on nature providing straightforward 'early warning' indicators of a climate disaster, as new mathematical modeling shows new fascinating aspects of the complexity of the dynamics of climate. It suggests that the climate system could be more unpredictable than previously thought.

The Amazon rainforest is facing a barrage of pressures that might tip it into large-scale ecosystem collapse as soon as 2050, according to new research Wednesday warning of dire consequences for the region and the world. The Amazon, which holds more than 10 percent of the world's biodiversity, helps stabilize the global climate by storing the equivalent of around two decades of emissions of planet-warming carbon dioxide.

New paper claims unless demand for resources is reduced, many other innovations are just a sticking plaster Record heat, record emissions, record fossil fuel consumption. One month out from Cop28, the world is further than ever from reaching its collective climate goals. At the root of all these problems, according to recent research, is the human “behavioural crisis”, a term coined by an interdisciplinary team of scientists.

James Hansen says limit will be passed ‘for all practical purposes’ by May though other experts predict that will happen in 2030s

The European Commission has received an open letter signed by 110 academics, businesses, civil society organisations and research institutions urging the EU to separate emissions reductions, land-based sequestration and permanent carbon removals in the EU’s post-2030 climate framework. This separation should be at the heart of both the setting and the implementation of the 2040 target and associated plans.

“New Scientist” commence l’année avec un tunnel vers l’enfer, un projet pharaonique qui vise à accéder aux entrailles de la Terre. Le magazine britannique en fait sa couverture.

Plus d’un millier de scientifiques spécialistes du climat exhortent le public à devenir des activistes Nous avons besoin de vous », déclare Scientist Rebellion, qui comprend les auteurs des rapports du GIEC sur les changements climatiques, alors que les diplomates se réunissent dans le cadre de la Cop28.

Humanity faces ‘devastating domino effects’ including mass displacement and financial ruin as planet warms

Referring to the Paris Agreement’s target of keeping Earth from warming no more than 1.5 degrees Celsius since the Industrial Revolution, the number has become a rallying cry for climate advocates and scientists, who say the goal is humanity’s best bet on avoiding the most catastrophic outcomes of climate change by the end of the century. Venturing even 0.5 degrees past that threshold could drastically increase the frequency and severity of extreme weather, biodiversity loss, famine and water scarcity, as well as make it more likely that tipping points accelerate warming further, climate scientists say.

‘We need you,’ says Scientist Rebellion, which includes authors of IPCC reports on climate breakdown, as diplomats meet for Cop28

La COP28 est une mascarade que les scientifiques refusent de cautionner. Les scientifiques en rébellion ont tenu à Bordeaux une contre-COP.

Réunis dans le sud-ouest de la France jusqu’à dimanche en parallèle du sommet mondial sur le climat aux Emirats arabes unis, les scientifiques en rébellion donne à voir et à penser à un public en quête de réflexion et de mobilisations.

the starkest warning yet that human activity is pushing Earth into a climate crisis that could threaten the lives of up to 6 billion people this century, stating candidly: “We are afraid of the uncharted territory that we have now entered.” Writing in the journal Biosciences, the coalition of 12 researchers, spanning North America, Europe and Asia, state in unusually stark language: “As scientists, we are increasingly being asked to tell the public the truth about the crises we face in simple and direct terms. The truth is that we are shocked by the ferocity of the extreme weather events in 2023.”

Catastrophic climate change and the collapse of human societies By Josep Peñuelas, Sandra Nogué National Science Review, Volume 10, Issue 6, June 2023 The scientific community has focused the agend…

The renowned US scientist’s new book examines 4bn years of climate history to conclude we are in a ‘fragile moment’ but there is still time to act

Previously, anthropogenic ecological overshoot has been identified as a fundamental cause of the myriad symptoms we see around the globe today from biodiversity loss and ocean acidification to the disturbing rise in novel entities and climate change. In the present paper, we have examined this more deeply, and explore the behavioural drivers of overshoot, providing evidence that overshoot is itself a symptom of a deeper, more subversive modern crisis of human behaviour. We work to name and frame this crisis as ‘the Human Behavioural Crisis’ and propose the crisis be recognised globally as a critical intervention point for tackling ecological overshoot. We demonstrate how current interventions are largely physical, resource intensive, slow-moving and focused on addressing the symptoms of ecological overshoot (such as climate change) rather than the distal cause (maladaptive behaviours). We argue that even in the best-case scenarios, symptom-level interventions are unlikely to avoid catastrophe or achieve more

Human activity has caused species groups to go extinct 35 times faster than they have over the past 500 years

First complete ‘scientific health check’ shows most global systems beyond stable range in which modern civilisation emerged

Alors que la mer Méditerranée et l’Atlantique Nord connaissent des records de chaleur, une zone dans l’océan Pacifique se refroidit, depuis maintenant trente ans. Un mystère que les scientifiques s’échinent à comprendre pour évaluer au mieux l’impact de cette “langue froide”, qui pourrait faire basculer notre avenir climatique.

Human-caused climate disruption and El Niño push temperature in mountains to 37C

As the northern hemisphere burns, experts feel deep sadness – and resentment – while dreading what lies ahead this Australian summer

After hottest day ever, researchers say global heating may mean future of crop failures on land and ‘silent dying’ in the oceans

James Hansen, who testified to Congress on global heating in 1988, says world is approaching a ‘new climate frontier’

Updated, more accurate data gives a new look at the effects of sea level rise.

Ice-free summers inevitable even with sharp emissions cuts and likely to result in more extreme heatwaves and floods

Going beyond climate disruption, the report by the Earth Commission group of scientists presents disturbing evidence that our planet faces growing crises of water availability, nutrient loading, ecosystem maintenance and aerosol pollution. These pose threats to the stability of life-support systems and worsen social equality.

In early May, a groundbreaking study from the University of California, San Francisco of 171 pregnant women found more than 9 in 10 had measurable amounts of 19 different chemicals and pesticides in their bodies. Researchers said many of those substances pass through the placenta and into developing fetuses, adding evidence to a National Institutes of Health report that warned babies are born "pre-polluted" with chemicals.

Abusive, often violent tweets denying the climate emergency have become a barrage since Elon Musk acquired the platform, say UK experts

An investigation by conservationists has found evidence that deep-seabed mining of rare minerals could cause “extensive and irreversible” damage to the planet.The report, to be published on Monday by the international wildlife charity Fauna & Flora, adds to the growing controversy that surrounds proposals to sweep the ocean floor of rare minerals that include cobalt, manganese and nickel. Mining companies want to exploit these deposits – which are crucial to the alternative energy sector – because land supplies are running low, they say.

IPCC report says only swift and drastic action can avert irrevocable damage to world

The excessive use of phosphorus is depleting reserves vital to global food production, while also adding to the climate crisis

An unprecedented rise in plastic pollution has been uncovered by scientists, who have calculated that more than 170tn plastic particles are afloat in the oceans. They have called for a reduction in the production of plastics, warning that “cleanup is futile” if they continue to be pumped into the environment at the current rate.

"Make Polluters Pay!" roepen wetenschappers en klimaatactivisten die nu de ingang blokkeren van de Aviapartner Executive Lounge en de Luxaviation terminal, exclusieve faciliteiten voor de superrijken die met privéjets van en naar Brussel vliegen. 
Deze geweldloze actie maakt deel uit van een wereldwijde campagne waarin wordt geëist dat degenen die het meest verantwoordelijk zijn voor de klimaatnoodsituatie, stoppen met hun destructieve levensstijl.


An alternate timeline that ends with a Nobel prize for Exxon’s CEO.

Carbon offsets can help achieve emissions goals, some experts argue, while others say they are actively dangerous

Group says forcing polluters to store carbon dioxide underground is needed to help world reach net zero

Lorsque la Russie a assumé la présidence tournante du Conseil de l’Arctique en 2021, Moscou a présenté une proposition ambitieuse à cet organisme de huit pays soucieux de l’environnement. Au cours des 14 prochaines années, elle fera remonter des profondeurs de l’Arctique un ensemble toxique de déchets nucléaires rouillés – y compris deux sous-marins nucléaires entiers – qui ont été coulés pendant l’ère soviétique.

En cette nouvelle année, il est indispensable de faire le bilan de la production d’électricité en 2022. Pour cela, nous comparerons l’Allemagne, souvent mise en avant par de nombreux politiques français pour son avance dans la transition énergétique, et la France, que ces mêmes politiques disent en retard. Attention, l’électricité ne représente que 20 à 25% de l’énergie consommée. De plus, l’empreinte carbone des habitants tient compte des importations (soit 50% pour un Français). Les émissions de CO2 présentées dans cet article ne concernent donc que celles liés à la production d’électricité.

Membre du mouvement Scientist rebellion en France, Kaïna Privet a décidé d’entrer en désobéissance civile à la fin de cet été brûlant. Elle raconte à Vert ce que la posture de scientifique apporte à l’activisme et explore l’avenir du collectif.

Flash droughts can develop within a few weeks, causing water shortages, damaging crops and worsening fire risks.

Des œuvres d’art aspergées de soupe, des blocages de route, des sabotages de trains... Les actions “coup de poing” de mouvements comme Extinction Rebellion, Just stop oil, Dernière génération ou Scientist Rebellion se multiplient sur le terrain et sur les réseaux, provoquant le débat.

Dans plusieurs pays, une dizaine de groupes de militants pour le climat, financés par un même fonds américain, ont mené des actions spectaculaires en ce début d’automne. Recensement de ces collectifs très actifs.

An international study on the future of insects under climate change scenarios has found the loss of insects will drastically reduce the ability of humankind to build a sustainable future. "A growing body of evidence shows many populations of insects are declining rapidly in many places. These declines are of profound concern, with terms like an emerging 'insect apocalypse' being increasingly used by the media and even some scientists to describe this phenomenon," Laurance said.

An international team of researchers have sounded new alarm bells about the changing chemistry of the western region of the Arctic Ocean after discovering acidity levels increasing three to four times faster than ocean waters elsewhere. The team, which includes University of Delaware marine chemistry expert Wei-Jun Cai, also identified a strong correlation between the accelerated rate of melting ice in the region and the rate of ocean acidification, a perilous combination that threatens the survival of plants, shellfish, coral reefs and other marine life and biological processes throughout the planet's ecosystem.

Eleven of the 20 largest economies got a C or worse on a renewable energy report card, which assessed their plans to reach net zero and their targets for producing and using renewable energy

Ecosystems rely on interconnectedness — bees pollinate the flowers, predators eats prey, and so on. But these webs, though highly evolved, can be delicate. One link goes missing, and a ripple effect is felt throughout the entire system. As more species are lost, that balance becomes increasingly fragile, sometimes to the point of collapse.

Climate scientists have expressed shock at the UK’s smashed temperature record, with the heat soaring above 40C for the first time ever on Tuesday. Researchers are also increasingly concerned that extreme heatwaves in Europe are occurring more rapidly than models had suggested, indicating that the climate crisis on the European continent may be even worse than feared. Temperature records are usually broken by fractions of a degree, but the 40.2C recorded at Heathrow is 1.5C higher than the previous record of 38.7C recorded in 2019 in Cambridge.

La jurisprudence Urgenda est à l’origine d’innombrables condamnations de l’insuffisance des politiques à réduire les émissions de gaz à effet de serre. S’il est logique de s’attaquer ainsi à la source du problème, l’impossibilité de ces politiques à en supprimer les conséquences pose la question de l’insuffisance des mesures destinées à y faire face.

Ce lundi 23 mai, tandis que la capitale berlinoise s’éveillait doucement, des activistes de l’organisation Scientist Rebellion ont bloqué l’entrée du siège allemand de Bayer. Assis en tailleur entre les battants des portes tambours, dans leurs blouses blanches, ils ont dénoncé le rôle du géant de l’agrochimie dans la sixième extinction de masse : « Chaque jour, nous perdons jusqu’à 150 espèces pour toujours ! L’un des principaux moteurs de cette extinction massive est l’agriculture industrielle et les pesticides qu’elle utilise. »

Long before the current political divide over climate change, and even before the U.S. Civil War (1861-1865), an American scientist named Eunice Foote documented the underlying cause of today’s climate change crisis. The year was 1856. Foote’s brief scientific paper was the first to describe the extraordinary power of carbon dioxide gas to absorb heat – the driving force of global warming. Carbon dioxide is an odorless, tasteless, transparent gas that forms when people burn fuels, including coal, oil, gasoline and wood.

Microplastics are deposited in river floodplains and carried down to deeper levels, according to a study published in the journal Science of the Total Environment. Local topography, frequency of floods, and soil characteristics can affect the amount of plastic particles that are deposited and potentially carried into deeper soil.

the new study has uncovered five other events around the world which were even more severe but were never reported. “The recent heatwave in Canada and the United States shocked the world. Yet we show there have been some even greater extremes in the last few decades. Using climate models, we also find extreme heat events are likely to increase in magnitude over the coming century – at the same rate as the local average temperature,”

Reaching climate neutrality by 2050 will require 35 more times lithium and up to 26 more times the amount of rare metals compared to today’s limited use, according to a study by a team of researchers from the Belgian university KU Leuven. The study “Metals for Clean Energy” was commissioned by Eurometaux, Europe’s association of metal producers.

The rapid collapses of two ice shelves on the Antarctic Peninsula over the past quarter-century were most likely triggered by the arrival of huge plumes of warm, moisture-laden air that created extreme conditions and destabilized the ice, researchers said Thursday.

Dix-sept scientifiques suisses se sont rendus mercredi sur la Place fédérale à Berne et ont collé des parties du rapport des experts climatiques de l'ONU (GIEC), ainsi que d'autres extraits de recherches, sur les murs du Palais fédéral. La police veillait au grain.

La révolution climatique n’aura pas lieu en laboratoire... c’est ce qu’expliquent les scientifiques en rébellion à Camille Crosnier !

A new analysis of flash droughts finds that droughts coming on suddenly seem to be striking faster in the last two decades, with approximately 33–46 percent of flash droughts now emerging within just five days.

Alors que le GIEC sonne encore l'alarme, certains scientifiques, voyant que les rapports ne suffisent pas pour inverser la tendance, vont encore plus loin, en s'engageant dans la désobéissance civile. Le mouvement "scientist rebellion" prévoit des actions dans 27 pays.

Tirer la sonnette d'alarme ne leur suffit plus. À partir de cette semaine, des scientifiques d'une vingtaine de pays réunis au sein de Scientist Rebellion prévoient des actions de désobéissance civile pour souligner l'urgence à agir pour le climat, inspirés par les militants d'Extinction Rebellion.

Inspirés des militants d’Extinction Rebellion, les membres de Scientist Rebellion vont s’essayer à la désobéissance civile à l’occasion d’un nouveau rapport du Giec. Leurs actions vont durer toute la semaine dans vingt pays.

More than three-quarters of the world's largest rainforest has become less resilient to drought since the early 2000s, with areas near humans and with lower rainfall being the worst hit

February 28, 2022. Human-induced climate change is causing dangerous and widespread disruption in nature and affecting the lives of billions of people around the world, despite efforts to reduce the risks. People and ecosystems least able to cope are being hardest hit, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report, released today.

We may lose up to three meters of coastline in the Arctic every year by 2100 if greenhouse gas emissions are not reduced, according to a study published in the journal Nature Climate Change. The authors also warn about bigger waves due to increasing temperatures, making the coastline very vulnerable to further losses due to erosion.

L’algue du partenariat symbiotique qui constitue les lichens s’adapte aux évolutions du climat à un rythme extrêmement lent, suggère une nouvelle étude.

Rapidly rising levels of atmospheric methane are "very bad news for humanity and the planet," warned one observer.

How we can harness the staggering diversity of trees to lock away more carbon

The team led by Robert Cowie, a research professor at the University of Hawaii, argues that the International Union for Conservation of Nature (IUCN) Red List of Threatened Species was too focused on the loss of bird and mammal species — and not focused enough on invertebrates, a much larger group.

The new top scientist at the National Aeronautics and Space Administration wants the famed space agency to become a leading voice on climate change science, too.

Cracks and fissures stoke fears of breakup that could lead to half-metre rise in global sea levels – or more

Warmer winters are happening across the globe, and can be drivers of catastrophic weather events and profound changes

A survey of the world’s top climate researchers shows a stark finding: Most expect catastrophic levels of heating and damage soon—very soon.

As a leading climate scientist, Paola Arias doesn’t need to look far to see the world changing. Shifting rain patterns threaten water supplies in her home city of Medellín, Colombia, while rising sea levels endanger the country’s coastline. She isn’t confident that international leaders will slow global warming or that her own government can handle the expected fallout, such as mass migrations and civil unrest over rising inequality. With such an uncertain future, she thought hard several years ago about whether to have children.

Scientists have warned that hydrogen could be a significant “indirect” contributor to the greenhouse effect when it leaks through infrastructure and interacts with methane in the atmosphere.

The scientific consensus that humans are altering the climate has passed 99.9%, according to research that strengthens the case for global action at the Cop26 summit in Glasgow.

The UK is one of the world's most nature-depleted countries - in the bottom 10% globally and last among the G7 group of nations, new data shows. It has an average of about half its biodiversity left, far below the global average of 75%, a study has found.

A UN analysis today revealed a bleak upward trajectory for global carbon dioxide emissions, despite new CO2-curbing plans by scores of countries, including major emitters such as the US and the European Union’s 27 member states.

The IPCC is unequivocal: we must take urgent action to curb global heating and prevent catastrophe. Will our policymakers and the Cop26 conference be up to the task?

As the world battles historic droughts, landscape-altering wildfires and deadly floods, a landmark report from global scientists says the window is rapidly closing to cut our reliance on fossil fuels and avoid catastrophic changes that would transform life as we know it. The state-of-the-science report from the United Nations' Intergovernmental Panel on Climate Change says the world has rapidly warmed 1.1 degrees Celsius higher than pre-industrial levels, and is now careening toward 1.5 degrees — a critical threshold that world leaders agreed warming should remain below to avoid worsening impacts.

Climate scientists have detected warning signs of the collapse of the Gulf Stream, one of the planet’s main potential tipping points. The research found “an almost complete loss of stability over the last century” of the currents that researchers call the Atlantic Meridional Overturning Circulation (AMOC). The currents are already at their slowest point in at least 1,600 years, but the new analysis shows they may be nearing a shutdown.

There are some phrases that should stop you in your tracks. The warning of a future that holds "untold suffering" is one of them. That is exactly what scientists from around the world are cautioning will happen if we don't take the threat of climate change seriously. In a paper published Wednesday in the journal BioScience, more than 14,000 scientists from 153 countries signed their name to research that warns of an incoming climate emergency.

Around 13,000 researchers have called for urgent action to slow down the climate emergency as extreme weather patterns shock the world. They listed three core measures.

As scientists gather online to finalize a long-awaited update on global climate research, recent extreme weather events across the globe highlight the need for more research on how it will play out, especially locally.

The list of extremes in just the last few weeks has been startling: Unprecedented rains followed by deadly flooding in central China and Europe. Temperatures of 120 Fahrenheit (49 Celsius) in Canada, and tropical heat in Finland and Ireland. The Siberian tundra ablaze. Monstrous U.S. wildfires, along with record drought across the U.S. West and parts of Brazil.

In the archive of the UK Centre for Ecology & Hydrology there is a typed note from the 1960s that planted the seed of an idea.

Climate scientists have said nowhere is safe from the kind of extreme heat events that have hit the western US and Canada in recent days and urged governments to dramatically ramp up their efforts to tackle the escalating climate emergency.

Our research vessel (RV) Investigator departs Darwin today for a 45-day voyage of biodiversity discovery in the tropical waters of the Indian Ocean.

More than half the world’s rivers stop flowing for at least one day per year, according to the first detailed global map of river flow. More rivers than that are expected to run dry if climate change and water management issues aren’t addressed.

InfluenceMap, a think tank that monitors corporate lobbying around climate change, reveals: while the 10 European airlines looked at for this report have received around €30 billion in bailouts during the pandemic – some of which came with conditions attached to encourage climate-friendly actions – most have simultaneously lobbied to delay new proposals to cut aviation emissions.

Analysis shows significant risk of cascading events even at 2C of heating, with severe long-term effects. The new research examined the interactions between ice sheets in West Antarctica, Greenland, the warm Atlantic Gulf Stream and the Amazon rainforest. The scientists carried out 3m computer simulations and found domino effects in a third of them, even when temperature rises were below 2C, the upper limit of the Paris agreement.

Analysis shows significant risk of cascading events even at 2C of heating, with severe long-term effects. Ice sheets and ocean currents at risk of climate tipping points can destabilise each other as the world heats up, leading to a domino effect with severe consequences for humanity, according to a risk analysis. Tipping points occur when global heating pushes temperatures beyond a critical threshold, leading to accelerated and irreversible impacts.

D’après un rapport des Nations unies publié en mars dernier, des attaques de drones sans aucune intervention humaine ont été recensées en Libye. On ne sait pas s’il y a eu des victimes, mais cet événement prouverait que les tentatives de réguler les robots tueurs ont déjà un train de retard.

To understand how long it will take to recover from this extinction event, a team of European scientists from Germany, Switzerland, the UK and The Netherlands decided to compare it with the previous mass extinction event, which occurred 66 million years ago when an asteroid hit our planet. This was a major event event that wiped off dinosaurs along with 75% of all species.

À quelques mois de la 26e Conférence des parties sur le climat, l’hebdomadaire scientifique dresse un état des lieux de la planète, qui n’en finit plus de se réchauffer, et montre qu’il est encore temps d’agir.

For the organizations looking to stall climate action, climate denial has become passé. Instead, they have turned to carbon shaming, it’s-too-late climate doomism, and stirring up fights among climate advocates, all to paralyze behaviors and policies that could help us fight climate change.

The latest report from the Climate Council of Australia, Aim High, Go Fast: Why Emissions Need to Plummet This Decade, lays out the science behind the necessity of urgent near-term climate action. The diagnosis is in, now the treatment must be ramped up with a greater sense of urgency than ever before, and we have to do it in the next 10 years.

Global warming is a "threat multiplier" for habitats and species already under pressure – by understanding how the problems are linked, we can solve two crises at once

The growing popularity of SUVs is making it even harder to cut carbon dioxide emissions and meet climate goals. “Policy-makers need to find ways to persuade consumers to choose smaller and more efficient cars,” says Petropoulos.

Scientist Rebellion est une organisation internationale de scientifiques, qui souhaite sensibiliser au réchauffement climatique en s'engageant dans la désobéissance civile non-violente.

Australia’s top climate scientist says “we are already deep into the trajectory towards collapse” of civilisation, which may now be inevitable because 9 of the 15 known global climate tipping points that regulate the state of the planet have been activated.

Analysis shows 500 species on brink of extinction – as many as were lost over previous century

Humanity at risk if we keep thinking everything is under control

Climate change has been relatively kind to banana suppliers so far – but in the decades to come, friend may turn to foe. Temperatures are likely to get so hot that the annual production gains enjoyed by banana suppliers will begin to drop. And in some places, total banana yields will begin to decline.

Humanity has swung a wrecking ball through the biosphere. We have chopped down over half of the world’s rainforests and by the middle of this century there may not be much more than a quarter left. This has been accompanied by a massive loss in biodiversity, such that the biosphere may be entering one of the great mass extinction events in the history of life on Earth.

ScientistsForFuture, un collectif international de scientifiques, témoigne dans une lettre ouverte de son soutien aux jeunes qui brossent les cours pour manifester en faveur de mesures de protection du climat. "Leurs inquiétudes sont fondées et soutenues par les constats scientifiques les plus sérieux. Les mesures de protection du climat et de la biosphère actuellement en vigueur sont très insuffisantes", peut-on lire dans cette missive.

The IPCC report sets out the world’s current knowledge of the impacts of 1.5C of warming and clearly shows the dangers of breaching such a limit. However, many scientists are increasingly worried about factors about which we know much less. These “known unknowns” of climate change are tipping points, or feedback mechanisms within the climate system – thresholds that, if passed, could send the Earth into a spiral of runaway climate change.

Selon une méta analyse internationale publiée, en août 2017, par les Comptes rendus de l’Académie américaine des sciences (Pnas), les effets du réchauffement climatique n’affectent pas uniquement le mercure. Les rendements agricoles et la qualité nutritionnelle des céréales sont eux aussi sensiblement impactés par le printemps humide et la canicule estivale. En effet, ces conditions favorisent la prolifération des insectes, y compris les ravageurs s’attaquant aux récoltes.

26,000 subscribing members from 180 countries Mise en garde des scientifiques du monde à l'humanité : deuxième avertissement - le site

Mise en garde des scientifiques du monde à l'humanité : deuxième avertissement William J. Ripple, Christopher Wolf, Mauro Galetti, Thomas M Newsome, Mohammed Alamgir, Eileen Crist, Mahmoud I. Mahmoud, William F. Laurance Et 15 364 scientifiques signataires de 184 pays (l’ensemble des signataires est listé en annexe S2)

The scientist who has borne the full brunt of attacks by climate change deniers, including death threats and accusations of misappropriating funds, is set to hit back.

The scientist who has borne the full brunt of attacks by climate change deniers, including death threats and accusations of misappropriating funds, is set to hit back.