UN Climate Change (@unfccc) Executive Secretary.
Bonn, Germany
Joined March 2018
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The climate crisis is now a global health crisis of pandemic proportions.
From toxic pollution, to climate disasters slamming through health systems and infrastructure, to rising heat impacting pregnancy and birth.
#COP31 is a moment to focus on practical solutions.
#COP31 must supercharge solutions.
The fossil fuel cost chaos has delivered a global shockwave.
The solutions are clear: Global renewables saved US$265 billion in the first half of this year alone. Adaptation delivers proven returns on investment.
More: bit.ly/4sKHHAN
At #PreCOP31 this week, the Pacific region has shown again how to meet danger with determination, innovation, cooperation, and practical solutions.
That is the spirit we need heading into #COP31.
My full remarks here: bit.ly/4hJRAty
📸 Fiji MECC / Kiara Worth
73% of health-care professionals reported more heat-linked complications. 81% are concerned about heat & maternal & newborn health - new data by @wellcometrust shows.
Pregnancy and birth are now a new faultline in the global climate crisis.
👉 bit.ly/4yxCcru
#preCOP31
Climate action needs policy and investment. But it also needs imagination and creativity.
This is why the work under the renewed strategy for Entertainment and Culture for Climate Action (ECCA) – launched at NY Climate Week – is so essential.
More: bit.ly/4yW1jUC
New @IRENA data: global renewables avoided almost half a trillion US$ in fossil fuel costs.
With fossil fuel dependency driving higher food prices & inflation, any leader must be serious about cutting planet-baking fossil fuels & building resilience.
bit.ly/4cV5TtE
This is the spiraling price of humanity’s fossil fuel addiction. Until humanity stops burning colossal amount of coal, oil & gas, the pollution this causes will keep baking our planet.
The solutions are clear: a faster shift to cheaper clean energy & building climate resilience.
🌡 August #C3S Climate Bulletin reports August was joint-warmest month on record & 1.65°C above the estimated pre-industrial level. Western Europe saw its warmest summer on record, while average sea surface temperature across extra-polar ocean was also joint highest on record.⬇️
#ClimateWeek4 and @BakuClimateWeek are driving forward the promise of the Paris Agreement.
They are all about connecting actors for results that people can see and feel: clean, reliable power; lower costs; stronger food systems; healthier communities.
👉bit.ly/4xjGwZZ
After the #JuneClimateMeetings, attention now turns to the weeks ahead - to narrow differences, strengthen cooperation and prepare for success at #COP31.
With the action agenda complementing the negotiations to turn decisions into practical results.
👉bit.ly/4qFGtps
A world addicted to coal, oil & gas is a world of instability and rising costs for all.
Renewables are cheaper, safer and faster to market. They can fortify the foundations of peace – while cutting planet-heating pollution and supercharging economies.
👉 bit.ly/4x1qVhY
ALT Photo credit: Saranya Misra/OPGA
India’s clean energy growth is like Sachin Tendulkar & Vaibhav Sooryavanshi rolled into one:
A stellar record already and if India keeps doubling down on renewables & clean tech, the next chapters promise to be extraordinary with even more jobs & growth.
bit.ly/44KbcYr
An excellent discussion in Delhi with Minister @byadavbjp on India’s deep commitment to climate action, and the vast human & economic benefits that’s delivering to India’s people and economy. We also spoke about expectations for COP31 & key topics in the BRICS environment track.
Delighted to have met with UNFCCC Executive Secretary Mr Simon Stiell in New Delhi today.
We had an engaging discussion on important agenda items with particular focus on adaptation, technology transfer, climate finance, global stocktake, and just transition.
Elaborated on how India under the leadership of Hon'ble PM Shri @narendramodi ji has not only submitted its enhanced NDCs, but also achieved it successfully way earlier than its stipulated timeline. India is also taking strides in other allied sectors to combat the climate change crisis.
Every nation at COP30 agreed the global transition is 'irreversible'. Powerful new evidence: renewable power clocked its fastest growth ever – cheaper, safer, faster-to-market vs fossil fuel cost chaos. But it's not fast or inclusive enough: climate finance delivery is essential.
Annual renewable capacity additions have increased notably over the past 25 years, reaching an unprecedented peak of 693 GW in 2025. This positive trend in installed capacity confirms that renewable deployment continues to outpace fossil-fuel growth.
👉bit.ly/4fxA0ci
US cities hosting #WorldCup matches are twice as likely to see extreme heat & storms than in 1994, and we’re seeing that play out.
That’s climate change - driven by burning massive amounts of coal, oil and gas.
The solutions already exist: clean energy and building resilience.
Europe’s savage heatwave has the fingerprints of the climate crisis all over it.
Until humanity stops burning coal, oil and gas, extreme heat will keep getting worse.
The solutions are clear: a faster shift to renewables, protecting forests and boosting climate resilience.
Simon Stiell retweeted
From local pitches to the World Cup, football brings people together
But climate change is reshaping the conditions the game is played in
The shift to clean energy and stronger resilience is already underway. Now we must move faster to protect the game & everyone who watches it
Clean energy is the fastest route to energy security, sovereignty and affordability for all.
The current fossil fuel cost crisis has made that painfully clear.
The shift is unstoppable – but it must be just and global.
More: bit.ly/4wqgG6D
Simon Stiell retweeted
Our Yearly Offer of Action was built around a simple principle: climate progress is measured by what we deliver.
At #LCAW26, @UNFCCC Executive Secretary @simonstiell highlighted its importance, as more mayors join the initiative.
ALT A promotional graphic featuring a quote on climate action from Simon Stiell, Executive Secretary of the UNFCCC, alongside a portrait photo of him against a colorful London cityscape background. “Subnational governments are demonstrating how climate ambition can be translated into tangible results for people and communities. This kind of collective yearly implementation across all levels of government is essential to bolstering climate action and achieving the goals of the Paris Agreement.”
#JuneClimateMeetings delivered real progress in key areas, like a just transition & electrification. In other key areas, there was stalling & side-stepping.
We must deliver on all existing commitments, without cherry-picking. To protect 8 billion people.
bit.ly/4fQr4PU
