🌍 75 Years of Science for Action Garvin Cummings, Chief Hydrometeorological Officer of the Hydrometeorological Service of Guyana, highlights one of WMO’s most important deliverables over the past decades. 🔗 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

🎉 That’s a wrap for WMO at the 80th #UNGA! 👀 What did we get up to? Find out by clicking the links below 👇 📖 : https://bit.ly/46Aj9zW 📸: https://bit.ly/48xxFLm

In 2024, all glaciated regions on Earth lost ice for the third consecutive year. That’s 450 Gt gone: enough to fill 180 million Olympic swimming pools. This added 1.2 mm to global sea levels. Read the #StateOfWater report 🔗 https://bit.ly/469OBWU

🌍 75 Years of Science for Action Zhenlin Chen, Administrator of the China Meteorological Administration, highlights WMO’s most important deliverables over the past decades. 🔗 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

🎂Today marks 10 years of the #sustainabledevelopmentgoals (SDGs) Since 2015, all United Nations Member States have committed to achieving peace and prosperity for people and the planet through the SDGs. To learn more about WMO's role, click the link below 👇 🔗 https://bit.ly/3WcAuKg

📺 Today at #UNGA: the UN Climate Summit 2025. Leaders present new #NDCs ahead of #COP30noBrasil. WMO’s call is clear: ✅ #EarlyWarningsForAll save lives 🔥 Extreme heat is a silent killer 💪 We can close the warnings gap now 🔗 Watch live: https://bit.ly/4neuVa9

🌍 Health is everyone’s business. Climate, conflict and inequality are putting global health at risk, and our systems must evolve. Today at the #UNGA, WMO joined the @foreignpolicy.com#UNGAHealth Forum to explore how science can strengthen public health. 📺: https://bit.ly/3ICYxyV

📣 Today at #UNGA: the Climate Summit. 🗣️ WMO SG Celeste Saulo: “Early warnings are saving lives.” 🔥 But extreme heat is rising. We need: 💰 More financing ⚙️ Integration in NDCs 🤝 Last-mile delivery 📺 https://bit.ly/3W4CuEp

Yesterday at #UNGA, WMO SG Celeste Saulo joined the Women Rise for All lunch hosted by UNDSG Amina J Mohammed. The gathering celebrated women’s transformative leadership for the #SDGs and created space to share insights, strengthen networks & drive sustainable development.

The #UNGA high-level debate has begun. UNSG António Guterres: “There is one choice we must never make: the choice to give up.” WMO SG Celeste Saulo at the Climate Summit: “Early warnings are saving lives.” 🔗 More on WMO at the Climate Summit: https://bit.ly/3VsfJKx #ClimateAction

🌍 75 Years of Science for Action Abdulla Al Mandous, President of WMO and Director General of the National Center of Meteorology (United Arab Emirates), highlights WMO’s most important deliverables over the past decades. 🔗 Learn more here: https://bit.ly/4n3aOf5

📢 Don’t miss out! The online course “Integrated Drought Management: Monitoring and Early Warning” is still open for enrollment until November 2025. 🌍 Register now 🔗 https://bit.ly/46iJ7Xd

✨ Happy Autumnal Equinox! 🌍 Tonight, at 20:19 CEST: 🌙 Nights begin to last longer than days in the Northern Hemisphere ☀️ Days begin to last longer than nights in the Southern Hemisphere 📸🎥 @eumetsat.int,@esa.int, NASA

WMO is at the #UNGA #ClimateSummit2025 Solutions Dialogue with a clear message: Early warnings save lives. Extreme heat is deadly. We need solutions — now. “Early warnings and heat solutions go hand-in-hand. - SG Celeste Saulo More here 🔗: https://bit.ly/3VODk8t

🌍 75 Years of Science for Action Ian Lisk, President of the WMO Commission for Weather, Climate, Hydrological, Marine and Related Environmental Services and Applications, highlights one of WMO’s most important deliverables over the past decades. 🔗 https://bit.ly/4n3aOf5

🌍 75 Years of Science for Action Arlene Laing, Coordinating Director of the Caribbean Meteorological Organization (British Caribbean Territories), highlights one of WMO’s most important deliverables over the past decades. 🔗 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

2024 marked the sixth consecutive year of an erratic hydrological cycle. Continued investment in water resources monitoring and stronger collaboration in data sharing are vital to closing global monitoring gaps. Read the #StateOfWater Report 🔗 https://bit.ly/469OBWU

🌍 75 Years of Science for Action Sarah Jones, President of Deutscher Wetterdienst (Germany, @dwdderwetterdienst.bsky.social), highlights one of WMO’s most important deliverables over the past decades. 🔗 Learn more about the Young Earth System Scientists community here: https://bit.ly/4m0MSYl

How much water is too little, or too much? In the past six years, two-thirds of rivers worldwide had too much or too little water, showing just how unpredictable and erratic the hydrological cycle has become. This is the #StateOfWater. Read the report 🔗https://bit.ly/469OBWU

💡 What’s next for WMO? Ayman Salem Ghulam, Chief Executive Officer of the National Center for Meteorology (Saudi Arabia), shares one of the top priorities to deliver moving forward. 📌 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

Just Launched 📢 The WMO’s 2024 State of Global Water Resources Report is now available! In 2024, the water cycle has become increasingly erratic and extreme, swinging between deluge and drought. This is the #StateOfWater. Read the report 🔗 https://bit.ly/469OBWU

WMO was thrilled to host #COP30 Brazil 🇧🇷 President-designate André Corrêa do Lago today. Read up on vision for #COP30: https://bit.ly/4nXjoMH Watch vision for #COP30: https://bit.ly/3KaG0KM

Join us today for the launch of the WMO’s State of Global Water Resources 2024 Report 💧 📅 Today, 18 September 2025 🕤 09:30-10:30 CEST 📺 Livestream: https://bit.ly/4n5aWur Don’t miss this chance to explore the report’s key findings and understand global water trends!

🌍 75 Years of Science for Action Sarah Jones, President of Deutscher Wetterdienst (Germany, @dwdderwetterdienst.bsky.social), highlights one of WMO’s most important deliverables over the past decades. 🔗 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

Today is #WorldOzoneDay WMO ensures there is high-quality data for policy-makers, fostering the exchange of knowledge between countries, and producing Ozone and UV Bulletins to track the state of the Ozone Layer. 🔗More here: https://bit.ly/42wmM8C

Join us for the launch of the WMO’s State of Global Water Resources 2024 Report 💧 🗓️ 18 Sept 2025 🕤 09:30–10:30 CEST Watch the livestream: https://wmo.int/events/meeting/launch-of-wmo-state-of-global-water-resources-2024-report

📅 16 September marks #WorldOzoneDay For more information on the state of the Ozone Layer, stay tuned for the release of WMO's 3rd Edition Ozone and UV Bulletin on #WorldOzoneDay, 16 September!

💡 What’s next for WMO? Michel Jean, President of the WMO Commission for Observation, Infrastructure and Information Systems, shares one of the top priorities to deliver moving forward. 📌 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

💡 What’s next for WMO? Michel Jean, President of the WMO Commission for Observation, Infrastructure and Information Systems, shares one of the top priorities to deliver moving forward. 📌 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

💡 What’s next for WMO? Penny Endersby, Chief Executive of the Met Office (@metoffice.gov.uk), shares one of the top priorities to deliver moving forward. 📌 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

💧 When floods hit Nepal in September 2024, communities had little time to prepare. But what if they had advance warning? ☀️ Through the @crews-initiative.bsky.social, WMO is working with Nepal's meteorological services to strengthen #EarlyWarningsForAll. Because every warning matters.

💡 What’s next for WMO? Li-Na Koh, Director General of the Meteorological Service Singapore, shares one of the top priorities to deliver moving forward. 📌 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

WMO plays a critical role in closing weather observation and data gaps through global coordination of meteorological and hydrological data which strengthens #EarlyWarningsForAll - protecting lives and livelihoods.

Antarctica is losing about 136 billion tons of ice mass per year, and Greenland is losing 267 billion tons. As glaciers melt, our fresh water supplies diminish, threatening communities worldwide. We must amplify #Glaciers2025. The time to act is now.

💡 What’s next for WMO? Garvin Cummings, Chief Hydrometeorological Officer of the Hydrometeorological Service of Guyana, shares one of the top priorities to deliver moving forward. 📌 Learn more here: https://bit.ly/4n3aOf5

Day two of “WMO Artificial Intelligence Conference: AI for Weather Prediction, Advances, Challenges & Future Outlook" comes to an end. Find out how WMO is harnessing the power of prediction to guarantee #EarlyWarningsForAll. 🔗 https://bit.ly/3JVUKNx

💡 What’s next for WMO? Cécile Siewe, Assistant Deputy Minister of the Meteorological Services Canada, shares one of the top priorities to deliver moving forward. 📌 Learn more here: https://bit.ly/4n3aOf5

AI is accelerating how we observe, model and understand the Earth system. WMO research keeps it grounded in science. Earth System Modelling and Observations (under @wcrpclimate.bsky.social) unites modelling, satellite data and data assimilation to advance #AIForGood. 🔗 wcrp-esmo.org

#ClimateWeek2025 are global talks for local impact. WMO plays its part through #EarlyWarningsForAll and global coordination of meteorological and hydrological data. Find out more below 👇 🔗 https://bit.ly/3V6rw0Y

This week, the WMO and the National Center of Meteorology (NCM) of the United Arab Emirates are convening a global workshop on AI in weather prediction and environmental services. 🔍 Learn more: https://bit.ly/46bDX0i 📺 Watch live starting 9 September: https://bit.ly/46cgkov

What’s clouding our future? Air pollution—the top environmental health risk—chokes lives, climates, and economies. “Invest in #CleanAirNow” isn’t just a call—it’s a win for health and sustainability. On #WorldCleanAirDay and every other day, WMO’s on it: https://bit.ly/47sdGx7

AI is opening new pathways for climate data. @wcrpclimate.bsky.social WGRC is launching Observations for Emerging Technologies (Obs4ET) to process, compare and verify records more reliably, strengthening models and decisions. That’s #AIForGood. 🔗 wcrp-esmo.org/working-groups/wgorc

What you are seeing: a before-and-after of the Berg Lake’s drainage changing as Steller Glacier retreats, forcing the water to find new drainage routes - increasing the risk of sudden and destructive glacial lake outburst floods (GLOFs). This is why #Glaciers2025 matters.

Better air quality monitoring means healthier people, stronger economies, and thriving ecosystems. Find out more in WMO's latest Air Quality and Climate Bulletin 2025. 🔗 https://bit.ly/47sdGx7

Less than a week left to vote! Help choose the winning photos for the WMO 2026 Calendar Competition by liking your favourites on our channels below. 📅 Voting closes 8 Sep 2025
 👉 FB: https://bit.ly/423wVtk 👉 Flickr: https://bit.ly/4ml2OVR 👉 Insta: https://bit.ly/4ogqo7Y

The latest WMO El Niño/La Niña Update indicates that La Niña may develop from September 2025. Despite its temporary cooling influence, above-average temperatures remain likely across much of the world. 🔗 Read the full update: https://bit.ly/4mEhsbn

What if models could resolve cities street by street? WCRP’s Digital Earths uses AI, big data and HPC to build Urban Digital Twins that turn global patterns into local insights for planning, heat and flood management. People at the centre is #AIForGood. 🔗 https://bit.ly/4mvWsn3

AI is accelerating how we observe, model and understand the Earth system. WMO research keeps it grounded in science. ESMO (under WCRP) unites modelling, satellite data and data assimilation to advance #AIForGood. 🔗 https://bit.ly/4fSC8dq

🇺🇳 The WMO is implementing a strategic reorganization to better serve Members through enhanced integration of weather, climate, water, and environmental sciences in an Earth system approach - in line with the #UN80 initiative for a more agile and fit-for-purpose UN. https://erecruit.wmo.int/public/

What’s new in the 2025 Climate Data Management System (CDMS) Specifications? Big changes are here. The 2025 update reimagines how we manage climate data to make it more reliable, easier to share, and ready for the future. Download the publication today: https://bit.ly/45Hzd2j