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Conférence de presse de l'OMM : rapport « Unis dans la science 2024 » - 18 septembre 2024
Rapport annuel "Unis dans la science"
Orateurs :
Celeste Saulo, Secrétaire générale de l'OMM
Lauren Stuart, coordinatrice scientifique
Les impacts du changement climatique et des conditions météorologiques dangereuses inversent les gains de développement et menacent le bien-être des personnes et de la planète, selon un nouveau rapport multi-agences coordonné par l'Organisation météorologique mondiale (OMM).
- Le rapport multi-agences met en lumière les défis et les opportunités
- Décisions du Sommet du Futur : un choix entre percée ou effondrement
- Les impacts croissants du changement climatique inversent les gains de développement
- Le fossé entre l'aspiration et la réalité se creuse
- Les nouvelles technologies et l'innovation sont des changements potentiels
- Les sciences naturelles et sociales font partie d'une approche transdisciplinaire plus large
Histoire : “Rapport 'Unis dans la science' - OMM” – 18 septembre 2024
Orateurs :
- Celeste Saulo, Secrétaire générale de l'Organisation météorologique mondiale (OMM)
- Lauren Stuart, coordinatrice scientifique à l'Organisation météorologique mondiale (OMM)
TRT : 02’26”
SOURCE : UNTV CH
LANGUE : ANGLAIS / NATS
FORMAT : 16:9
DATELINE : 18 septembre 2024 - GENÈVE, SUISSE
Conférence de presse à Genève
LISTE DES PLANS
- Plan moyen extérieur : allée des drapeaux de l'ONU.
- Plan large de la salle de conférence de presse avec les orateurs au podium.
- EXTRAIT SONORE (Anglais) Celeste Saulo, Secrétaire générale de l'Organisation météorologique mondiale (OMM) : “La science est claire : nous sommes loin d'atteindre les objectifs climatiques mondiaux. 2023 a été l'année la plus chaude jamais enregistrée avec une marge énorme. Les principaux ensembles de données internationales indiquent que les huit premiers mois de 2024 sont également les plus chauds jamais enregistrés.”
- Plan moyen du podium avec les orateurs.
- EXTRAIT SONORE (Anglais) Celeste Saulo, Secrétaire générale de l'OMM : “Lorsque l'Accord de Paris a été adopté, les émissions de gaz à effet de serre devaient augmenter de 16 % d'ici 2030 par rapport à 2015. Maintenant, cette augmentation projetée est de trois pour cent. Donc, des progrès ont été réalisés, mais nous devons être beaucoup plus ambitieux. Le fossé entre l'aspiration et la réalité est flagrant.”
- Plan moyen des orateurs de dos et de la salle de conférence de presse.
- EXTRAIT SONORE (Anglais) Lauren Stuart, coordinatrice scientifique à l'Organisation météorologique mondiale (OMM) : “Les satellites améliorent notre capacité à surveiller les émissions de gaz à effet de serre, ce qui est crucial pour informer nos efforts de réduction des émissions et atteindre les objectifs de l'Accord de Paris. Un autre exemple que nous mettons en avant est les technologies immersives, qui rapprochent vraiment les mondes numérique et physique. Et un exemple de cela est ce que nous appelons les 'jumeaux numériques', qui sont essentiellement une réplique numérique de la Terre.”
- Plan large latéral : journalistes dans la salle de conférence de presse.
- EXTRAIT SONORE (Anglais) Celeste Saulo, Secrétaire générale de l'OMM : “J'ai confiance dans les gouvernements. J'ai confiance dans le multilatéralisme. J'ai confiance dans le Sommet du Futur et comment cela nous aidera à aborder, à utiliser la technologie pour le mieux tout en contrôlant les impacts négatifs de la technologie.”
- Plan large de la salle de conférence de presse.
- EXTRAIT SONORE (Anglais) Celeste Saulo, Secrétaire générale de l'OMM : “La science ne doit pas être gardée dans une boîte pour quelques-uns d'entre nous. La science doit être le mécanisme moteur dans le monde entier pour vraiment transformer et offrir plus d'opportunités aux générations futures.”
- Plans variés de la salle de conférence de presse avec des journalistes prenant des notes et des caméramans.
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As world’s water reserves change, countries must prepare for a new reality: WMO
New data showing that rivers were at their lowest level for decades last year provides further evidence that the climate crisis is real and countries must act immediately to protect themselves from the increasing threat to communities and livelihoods, the UN World Meteorological Organization (WMO) said on Thursday.
The key findings from WMO’s State of Global Water Resources 2025 report covering the hydrological cycle and extreme events in the five-year period to last year:
- 2025 was one of driest years for river discharge in 35 years
- Past seven years have seen abnorfmal river flows
- Water storage on Earth’s land surface has decreased in past decade
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- Asia and Africa are regions most affected by water-related disasters
- Water data availability has improved, but gaps remain in hard-hit areas
Highlighting the long-term decline in the Earth’s freshwater storage and glacier melt, WMO Secretary-General Celeste Saulo explained that the planet’s water reserves used to act as a planetary “savings account” that absorbed the occasional dry season, avoiding a water crisis. “One of the central stories of the 2025 report is what is happening to that savings account? And the simple answer is that we are depleting it,” she told journalists in Geneva.
Groundwater reserves are equally stretched and have been in decline since 2014, WMO’s report states, with nearly two-thirds of monitored wells worldwide showing levels lower than the historical norm and indicating a shift “further toward deficit…not recovery”.
“At the same time, we are seeing more water-related disasters,” Ms. Saulo said, while also stressing that the currently strengthening El Niño “will increase the risk of drought in some areas, and flooding in others”.
Glaciers disappearing
In 2025, for the fourth consecutive year, every major glaciated region on Earth lost ice mass, leading to short-term hazards including floods and long-term water insecurity, according to WMO.
Responding to a question about whether the changing global water cycle might have contributed to the deadly Nepal-China flooding disaster, Ms. Saulo explained that melting ice and rock was just one factor in the chain of events that ultimately sent a massive and deadly wall of water and debris downstream on 26 August, killing at least 1,367 people.
“You asked if it could happen again? Absolutely; the problem in this region is that there’s 63,700 glaciers at the last count,” she told a Press Conference in Geneva. “Even if you’re looking with remote sensing with satellites at these glaciers, you might see some faults, you might see some slight shifting, that does not mean necessarily catastrophic collapse. So, in order to plan for this, it’s very, very difficult. But the international community is looking very hard at ways in which we can bring people together to solve some of these monitoring issues.”
Data indicates that glaciers shrank between 2023 and 2025 with cumulative losses of 1,400 gigatonnes of water – or about one third of annual fresh water needs.
Every major glacier region on Earth lost ice for the fourth consecutive year.
“All 19 glacier regions around the globe lost ice; in Central Asia, Iceland, the Russian Arctic and western Canada and the United States, it was among the three worst years on record,” said Wayne Jenkinson, WMO’s Director of Hydrology and Cryosphere.
Some regions with smaller glaciers such as Central Europe, the Caucasus, the western Canada and the United States may already have reached “peak water”, Mr. Jenkinson warned.
“After this point, the glacier gives less meltwater each year simply because there is less ice left to melt. That matters for every community downstream that relies on water during hot, dry summers,” he explained.
Narelle van der Wel, WMO’s Head of Cryosphere Monitoring, Predictions and Services, stressed that while some further glacier loss is unavoidable, the eventual scale of the decline is not predetermined.
“Some glacier loss is inevitable, but total loss of glaciers is not yet inevitable,” she said, pointing to emissions reductions as central to limiting future losses.
Preparing for moving baselines
The report does not attribute every observed change to climate change alone. WMO says pressure on water resources and natural variability also contribute.
Mr. Jenkinson said governments need to prepare for “moving baselines” as historical patterns become less reliable.
“The situation 30 years ago is not where we are today,” he said. Countries, he added, need to prepare “for those changes that have really already arrived”.
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