23 juin 2025
Identifying the socio-economic drivers behind greenhouse gas emissions is crucial to design mitigation policies. Existing studies predominantly analyze short-term CO2 emissions from fossil fuels, neglecting long-term trends and other GHGs. We examine the drivers of all greenhouse gas emissions between 1820–2050 globally and regionally. The Industrial Revolution triggered sustained emission growth worldwide—initially through fossil fuel use in industrialized economies but also as a result of agricultural expansion and deforestation. Globally, technological innovation and energy mix changes prevented 31 (17–42) Gt CO2e emissions over two centuries. Yet these gains were dwarfed by 81 (64–97) Gt CO2e resulting from economic expansion, with regional drivers diverging sharply: population growth dominated in Latin America and Sub-Saharan Africa, while rising affluence was the main driver of emissions elsewhere. Meeting climate targets now requires the carbon intensity of GDP to decline 3 times faster than the global
2050,
carbon,
change,
changes,
climate,
focusclimat,
contraction,
deforestation,
design,
economic,
economy,
emissions,
energy,
expansion,
fossil,
from,
fuel,
fuels,
future,
global,
greenhouse,
growth,
history,
innovation,
long,
mitigation,
other,
population,
rise,
rising,
surface,
targets,
temperatures,
will,
émissions,
richesses 19 juin 2025
In a rapidly changing climate, evidence-based decision-making benefits from up-to-date and timely information. Here we compile monitoring datasets (published at https://doi.org/10.5281/zenodo.15639576; Smith et al., 2025a) to produce updated estimates for key indicators of the state of the climate system: net emissions of greenhouse gases and short-lived climate forcers, greenhouse gas concentrations, radiative forcing, the Earth's energy imbalance, surface temperature changes, warming attributed to human activities, the remaining carbon budget, and estimates of global temperature extremes. This year, we additionally include indicators for sea-level rise and land precipitation change. We follow methods as closely as possible to those used in the IPCC Sixth Assessment Report (AR6) Working Group One report.
2024,
benefits,
budget,
carbon,
change,
changes,
climate,
focusclimat,
concentrations,
earth,
emissions,
energy,
forcing,
from,
gases,
global,
greenhouse,
group,
influence,
information,
ipcc,
land,
level,
report,
rise,
state,
surface,
system,
temperature,
warming,
plusde2,
un-degré-et-demi 14 juin 2025
Dans le cadre d’une étude récente, des économistes européens ont simulé un arrêt des échanges alimentaires mondiaux. Selon les résultats, un seul pays brillant par son autosuffisance devrait survivre aisément à l’arrêt des échanges alimentaires.
alimentation,
échanges,
alimentaires,
mondiaux,
autosuffisance,
Guyana,
Guyane,
britannique,
production,
alimentaire,
suffisante 23 avril 2025
We investigate the probabilities of triggering climate tipping points under five Shared Socioeconomic Pathways (SSPs) and how they are altered by including the additional carbon emissions that could arise from tipping points within the Earth's carbon cycle. The crossing of a climate tipping point at a threshold level of global mean surface temperature (threshold temperature) would commit the affected subsystem of the Earth to abrupt and largely irreversible changes with negative impacts on human well-being. However, it remains unclear which tipping points would be triggered under the different SSPs due to uncertainties in the climate sensitivity to anthropogenic greenhouse gas emissions, the threshold temperatures and timescales of climate tipping points, and the response of tipping points within the Earth's carbon cycle to global warming. We include those uncertainties in our analysis to derive probabilities of triggering for 16 previously identified climate tipping points within the Earth system.
amazon,
carbon,
changes,
climate,
focusclimat,
cycle,
earth,
emissions,
global,
greenhouse,
impacts,
irreversible,
level,
permafrost,
point,
points,
surface,
system,
temperature,
temperatures,
tipping,
warming,
focusclimat,
points,
bascules,
basculement,
emballement 01 mars 2025
La Belgique a assuré l'Ukraine de son soutien après l'altercation, vendredi soir à la Maison Blanche, entre le président des États-Unis Donald Trump et le président ukrainien Volodymyr Zelensky.
28 février 2025
Alors qu’ils doivent signer dans le Bureau ovale un accord sur les minerais rares, les échanges entre les présidents américain et ukrainien ont dégénéré.
12 février 2025
Le président ukrainien s’est dit prêt, mardi lors d’un entretien au « Guardian », à « un échange » de territoires avec le Kremlin, dans le cadre d’éventuelles négociations de paix sous l’égide des États-Unis.
27 mars 2024
Le Hezbollah et son allié Amal ont annoncé mercredi soir huit morts dans leurs rangs, parmi lesquels des secouristes, dans des frappes israéliennes dans le sud du Liban portant à 16 le nombre de victimes d'une journée d'échanges de tirs transfrontaliers.
18 décembre 2023
Après les attaques répétées de bateaux dans la mer Rouge par les rebelles houthis, les compagnies maritimes évitent l'un des principaux corridors du commerce mondial, ce qui devrait perturber les échanges, avec des retards et des surcoûts. Que s'est-il passé?Ces dernières semaines, des rebelles houthis du Yémen, proches de l'Iran, ont multiplié les attaques près du détroit stratégique de Bab al-Mandeb, qui sépare la péninsule arabique de l'Afrique.
28 mars 2023
Les Etats-Unis et le Japon ont signé mardi un accord visant à renforcer "les chaînes d'approvisionnement pour les minéraux critiques et les batteries pour véhicules électriques" et renforcer les échanges entre les deux pays concernant ces produits essentiels à la transition énergétique et jusqu'ici dominés par la Chine.
accord,
japon,
échanges,
matériaux,
critiques,
batteries,
électriques,
énergies,
minéraux critiques,
batteries,
Etats-Unis 06 octobre 2022
A recent paper suggested damaging climate tipping points could be closer than first thought.
18 juillet 2022
Can we talk about it now? I mean the subject most of the media and most of the political class has been avoiding for so long. You know, the only subject that ultimately counts – the survival of life on Earth. Everyone knows, however carefully they avoid the topic, that, beside it, all the topics filling the front pages and obsessing the pundits are dust. Even the Times editors still publishing columns denying climate science know it. Even the candidates for the Tory leadership, ignoring or downplaying the issue, know it. Never has a silence been so loud or so resonant.
04 juillet 2022
Persistent heat extremes can have severe impacts on ecosystems and societies, including excess mortality, wildfires, and harvest failures. Here we identify Europe as a heatwave hotspot, exhibiting upward trends that are three-to-four times faster compared to the rest of the northern midlatitudes over the past 42 years. This accelerated trend is linked to atmospheric dynamical changes via an increase in the frequency and persistence of double jet stream states over Eurasia. We find that double jet occurrences are particularly important for western European heatwaves, explaining up to 35% of temperature variability. The upward trend in the persistence of double jet events explains almost all of the accelerated heatwave trend in western Europe, and about 30% of it over the extended European region. Those findings provide evidence that in addition to thermodynamical drivers, atmospheric dynamical changes have contributed to the increased rate of European heatwaves, with implications for risk management and potent
23 mai 2022
Food supply expert paints grim global picture hunger 05.23.2022 By Arvin Donley NEW YORK, NEW YORK, US — Global wheat inventories currently stand at about 10 weeks of global consumption, a food supply expert said during a special meeting of the United Nations Security Council on May 19. Sara Menker, chief executive officer of Gro Intelligence, an organization that gathers and analyzes global food and agricultural data, said she disputes official government agency estimates that put global wheat inventories at 33% of annual consumption, countering inventories are closer to 20%. “It is important to note that the lowest grain inventory levels the world has ever seen are now occurring while access to fertilizers is highly constrained, and drought in wheat growing regions around the world is the most extreme it’s been in over 20 years,” Menker said. “Similar inventory concerns also apply to corn and other grains. Government estimates are not adding up.” Menker told the security council that while much of the blame
food,
supply,
global,
world,
security,
drought,
crisis,
fuel,
fire,
climate,
record,
economic,
restrictions,
impact,
ability,
export,
europe,
inflation,
soil,
import,
production,
public,
private,
financial,
ports,
flow,
maritime,
people,
perspective,
changes,
countries,
actions,
risk,
generation,
alimentation,
faim famines,
agriculture 02 avril 2022
The Gulf Stream has weakened substantially in the past decades, as revealed by the latest data and new studies. Weather in the United States and Europe depends strongly on this ocean current, so it’s important we understand the ongoing changes and what they mean for our weather now and in the near future.
gulf,
stream,
data,
collapse,
point,
weather,
europe,
ocean,
changes,
future,
focusclimat yfc 09 mars 2022
On ignore les raisons qui font que les systèmes de contrôle à distance des matériaux nucléaires ont cessé d’émettre mardi soir. Les échanges avec la centrale, sous contrôle russe, ne peuvent se faire que par courrier électronique.
guerre,
ukraine,
systèmes,
contrôle,
tchernobyl,
personnel,
matériaux,
nucléaires,
échanges,
centrale,
russe,
électronique,
russie 26 février 2022
Fatigué après avoir organisé l'évacuation de Kiev d'une partie de son équipe, Mike Chobanian, patron de la plateforme d'échanges de cryptomonnaies Kuna, observe sans broncher les conséquences économiques de l'offensive russe sur son entreprise, l'une des plus importantes d'un secteur florissant en Ukraine.
11 février 2022
Momentum to phase out unabated coal use is growing globally. This transition is critical to meeting the Paris climate goals but can potentially lead to large amounts of stranded assets, especially in regions with newer and growing coal fleets. Here we combine plant-level data with a global integrated assessment model to quantify changes in global stranded asset risks from coal-fired power plants across regions and over time. With new plant proposals, cancellations, and retirements over the past five years, global net committed emissions in 2030 from existing and planned coal plants declined by 3.3 GtCO2 (25%). While these emissions are now roughly in line with initial Nationally Determined Contributions (NDCs) to the Paris Agreement, they remain far off track from longer-term climate goals. Progress made in 2021 towards no new coal can potentially avoid a 24% (503 GW) increase in capacity and a 55% ($520 billion) increase in stranded assets under 1.5 °C. Stranded asset risks fall disproportionately on emergin
from,
coal,
plants,
momentum,
transition,
paris,
climate,
plant,
level,
data,
global,
model,
changes,
power,
emissions,
2030,
contributions,
agreement,
2021,
international,
focusclimat,
plusde2 08 février 2022
Tree diversity is fundamental for forest ecosystem stability and services. However, because of limited available data, estimates of tree diversity at large geographic domains still rely heavily on published lists of species descriptions that are geographically uneven in coverage. These limitations have precluded efforts to generate a global perspective. Here, based on a ground-sourced global database, we estimate the number of tree species at biome, continental, and global scales. We estimated a global tree richness (≈73,300) that is ≈14% higher than numbers known today, with most undiscovered species being rare, continentally endemic, and tropical or subtropical. These results highlight the vulnerability of global tree species diversity to anthropogenic changes.
species,
earth,
forest,
services,
data,
limitations,
efforts,
global,
perspective,
vulnerability,
changes,
Forêts,
focusbiodiversité,
focusclimat,
anthropocène 12 janvier 2022
Berkeley Earth, a California-based non-profit research organization, has been preparing independent analyses of global mean temperature changes since 2013. The following is our report on global mean temperature during 2021.
24 septembre 2021
Selon d’anciens échanges d’e-mails révélés par la VRT, il est clair que le politique a freiné en 2017 la communication sur la pollution aux PFOS (des composés perfluorés toxiques) à Zwijndrecht. Les mails semblent pointer la ministre flamande de l’Environnement de l’époque, Joke Schauvliege (CD&V), et celui qui était compétent pour la Mobilité et les travaux de la liaison Oosterweel, le N-VA Ben Weyts.
pollution,
pfos,
gouvernement,
échanges,
politique,
2017,
communication,
composés,
perfluorés,
toxiques,
ministre,
l’environnement,
mobilité,
PFOS 20 août 2021
L’Afghanistan s’enfonce chaque jour un peu plus dans la crise. Depuis la prise du pouvoir par les talibans, la plupart des bureaux de service public, les banques et le principal marché des changes ont fermé, plongeant encore un peu plus la population dans une situation d’insécurité alimentaire.
insécurité,
alimentaire,
crise,
prise,
pouvoir,
talibans,
public,
banques,
marché,
changes,
population,
situation,
resalim 15 août 2021
The Gulf Stream has weakened substantially in the past decades, as new data and studies show. Weather in the United States and Europe depends strongly on this ocean current, so it’s important we understand the ongoing changes and what they will mean for our weather in the future.
gulf,
stream,
point,
collapse,
data,
ocean,
global,
weather,
europe,
changes,
will,
future,
amoc,
focusclimat,
yfc 12 août 2021
Global greenhouse gas emissions must peak in the next four years, coal and gas-fired power plants must close in the next decade and lifestyle and behavioural changes will be needed to avoid climate breakdown, according to the leaked draft of a report from the world’s leading authority on climate science.
greenhouse,
emissions,
peak,
report,
climate,
change,
global,
next,
coal,
power,
changes,
science,
co2,
charbon,
gaz,
focusclimat,
yfc 09 août 2021
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.
ipcc,
climate,
change,
report,
earth,
warming,
world,
from,
global,
reliance,
fossil,
fuels,
changes,
science,
nations,
leaders,
impacts,
giec,
rapport,
focusclimat,
yfc 05 août 2021
The Atlantic Ocean's current system, an engine of the Northern Hemsiphere's climate, could be weakening to such an extent that it could soon bring big changes to the world's weather, a scientific study said on Thursday.
ocean,
weather,
changes,
study,
climate,
world,
scientific,
amoc,
courant marin Gulf Stream circulation méridienne de retournement atlantique,
focusclimat,
plusde2,
yfc 19 juillet 2021
Scientists know that global warming is changing clouds, but they haven’t been sure whether those changes would heat or cool the planet overall. It’s an important question, because clouds have been the main source of uncertainty in projecting just how sensitive the climate is to increasing greenhouse gas concentrations, and because clouds have a huge effect on the climate system.
climate,
changes,
global,
warming,
heat,
source,
concentrations,
cloud,
focusclimat,
GHG,
GES 18 juin 2021
New research suggests social transformations that prompt “degrowth” could cut humanity’s climate footprint in time to meet the Paris climate agreement target.
social,
climate,
footprint,
degrowth,
economy,
Economic,
degrowth,
technology,
carbon,
storage,
co2,
carbon,
removal,
uncertainty,
risk,
unproven,
technologies,
structural,
social,
changes,
wellbeing,
décroissance,
focusclimat 26 avril 2021
Si le prix du carbone s’appliquait à l’ensemble des pays, sans frontières, les règles du jeu seraient identiques pour tous. À l’inverse, un prix du carbone appliqué à une seule zone peut impacter les échanges commerciaux. Il risquerait d’inciter les entreprises à délocaliser les émissions vers les régions sans tarification carbone plutôt qu’à les réduire. C’est le risque dit de « fuites de carbone », qui soulève la question du lien entre la politique climatique de l’Union européenne (UE) et sa politique commerciale.
prix,
carbone,
pays,
frontières,
règles,
échanges,
entreprises,
émissions,
régions,
politique,
climatique,
européenne,
marché,
UE,
focusclimat 18 mars 2021
Une animation produite par des chercheurs de la NASA permet de visualiser le détail des échanges de CO2 entre l’atmosphère et l’océan. En particulier, la résolution journalière du produit permet d’accéder à l’importante variabilité spatiale et temporelle des flux. Ces données servent à comprendre de façon toujours plus fine le fonctionnement du cycle du carbone.
21 décembre 2020
05 octobre 2020
22 septembre 2020
L’arrêt de l’économie à cause de la pandémie de Covid-19, du confinement et du ralentissement des échanges internationaux a de nouveau soulevé la question de la place du commerce dans nos vies. Qui dit commerce dit accords. La pertinence de ces politiques commerciales est notamment remise en cause en raison de leurs impacts sur l’environnement, l’économie et la démocratie
pandémie,
confinement,
ralentissement,
échanges,
internationaux,
commerce,
accords,
politiques,
commerciales,
impacts,
démocratie,
transition,
écologique,
covid19 09 avril 2020
The growing threat of abrupt and irreversible climate changes must compel political and economic action on emissions.
climate,
tipping,
points,
changes,
economic,
emissions,
focusclimat,
risque,
focuscollaps,
carbon,
co2 16 octobre 2019
A short glossary of the changes we’ve made to the Guardian’s style guide, for use by our journalists and editors when writing about the environment
13 mai 2015
Selon le professeur britannique Andrew Ellis, Internet pourrait s'effondrer en 2023 à la suite d'une saturation des réseaux provoquée par l'explosion des échanges de données. Contactés par nos confrères de la rédaction d'Industrie & Technologies, des spécialistes de la question nuancent ce scenario alarmiste.
blackout,
internet,
saturation,
réseaux,
échanges,
données,
industrie,
technologies,
alarmiste,
internet,
lowtech,
low-tech 06 décembre 2009
The centerpiece of the early anthropogenic hypothesis is the claim that humans took control of greenhouse-gas trends thousands of years ago because of emissions from early agriculture ( [32] and [33]). A common reaction to this claim is that too few people lived thousands of years ago to have had a major effect on either land use or greenhouse-gas concentrations.
land,
changes,
forest,
emissions,
claim,
control,
greenhouse,
agriculture,
people,
concentrations,
co2,
focusclimat