News and Events

Stay up to date with the latest IG3IS news and events.

EGU General Assembly 2026 will be held 3-8 May, in Vienna and online.  

Two EGU26 sessions on atmospheric composition, including greenhouse gases that may be of interest to the IG3IS community:

Session AS3.26 (PICO): Atmospheric composition variability and trends. See details here.

Session AS3.38: "Science-based, measurement-based greenhouse gas emission monitoring to inform climate change mitigation across decision-making scales and sectors."  See details here.

A large group of people poses for a group photo in a modern building with two floors, some standing on the upper level and others on the ground floor.
Update
24 April 2026

IG3IS Stakeholder Consultation and User Summit advances data-driven climate action
A group of people pose for a photo on a staircase and the marble floor of a spacious, modern lobby with seating and decorative elements.
Update
3 December 2025

First WMO guidance to support national estimates of greenhouse gas emissions using atmospheric observations
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Update
31 October 2025

New WMO guidelines help cities improve greenhouse gas emission information
News
15 October 2025

Carbon dioxide levels increase by record amount to new highs in 2024

Magazine Article
15 October 2025

The Role of Youth in Developing Science for Action
Diagram showing data transmission between satellites, drones, ground sensors, and city infrastructure through red arrows, with insets illustrating global communication and data exchange.
Update
4 July 2025

Science-based greenhouse monitoring can complement national efforts to meet mitigation targets and combat global warming
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Magazine Article
13 June 2025

WMO Research Programmes, Promoting Science for Action
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News
11 April 2025

WMO hosts conference on greenhouse gas emissions in cities

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Update
12 January 2025

G3W is moving forward
Person holding a sign that reads "there's no planet b" in front of industrial smokestacks emitting smoke against a cloudy sky.
Update
2 May 2024

Global Greenhouse Gas Watch Implementation Plan to be presented at Executive Council (EC-78)

Two approaches to monitoring tracking changing atmospheric greenhouse concentrations.
Magazine Article
5 May 2023

Global Greenhouse Gas Watch
WMO 2023 Calendar Competition
News
6 March 2023

WMO Executive Council endorses global greenhouse gas monitoring plan
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IG3IS Webinar series 2026: Using point source imaging satellites to support methane mitigation across sectors
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IG3IS Webinar Series 2026: Halogenated greenhouse gases monitoring: progress, challenges, and applications in support of policy makers
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IG3IS Webinar Series 2026: Supporting cities with the development of greenhouse gas emission inventories – practical guidelines and tools
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IG3IS Webinar Series 2026
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Geneva, Switzerland

IG3IS Stakeholder Consultations and User Summit 2026
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New IG3IS Good Practice Guidance for Estimating National-Scale Greenhouse Gas Emissions using Atmospheric Observations
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IG3IS Webinar Series (Q3-Q4, 2025): The Toronto Atmospheric Monitoring of Emissions (TAME) Project: Evaluating progress and co-benefits while avoiding pitfalls on the way to net-zero
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IG3IS Webinar Series (Q3-Q4, 2025): Urban flux towers as a tool for devising better climate policies for cities
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IG3IS Webinar Series (Q3-Q4, 2025): A national GHG emission monitoring system to support policy makers and modelling efforts in Spain - current status and achievements
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IG3IS Webinar Series (Q3-Q4, 2025): Updated IG3IS Urban Greenhouse Gas Emission Observation and Monitoring Good Research Practice Guidelines
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IG3IS Webinar Series (Q3-Q4, 2025)
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IG3IS Webinar Series (Q3-Q4, 2025): Landfills & Decarbonization: Challenges and Insights