Contrasting Biogenic Isoprene Emission Responses to La Niña and El Niño Driven by Temperature: Insights from HCHO-Based Global Inversion Isoprene strongly influences atmospheric chemistry by consuming hydroxyl radicals, forming secondary organic aerosols, and affecting methane’s lifetime. Accurate monitoring of its emissions is thus essential for understanding biosphere–atmosphere feedbacks, particularly under climate extremes. We develop a regression-based inversion framework to estimate global monthly biogenic isoprene emissions (2019–2024), integrating TROPOspheric Monitoring Instrument (TROPOMI) HCHO columns and LMDZ-INCA atmospheric transport model. Our inversion yields a global annual mean emission of 456 ± 249 TgC yr–1, with a minimum in 2022 (437 TgC, 1.4σ below multiyear mean) and a peak in 2024 (477 TgC, 1.5σ above), closely tracking global annual land surface temperature variations (R = 0.95). Emission anomalies are most pronounced in tropical regions contributing over 80% of global total anomalies during the 2020–2023 La Niña (−30 TgC), 2023–2024 El Niño (+11 TgC), and 2024 Northern Hemisphere extreme warming events (+15 TgC). Attribution analysis confirms surface temperature as the dominant driver of biogenic isoprene anomalies, with increasing sensitivity in Northern high-latitude zones under warming conditions. The updated emissions improve spatial agreement and reduce bias in LMDZ-INCA simulations against independent satellite-based isoprene and ground-based HCHO observations. This work delivers the first HCHO-constrained global isoprene emission data set through 2024, supporting air quality, oxidant budget, and climate feedback studies.

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A nice application combining 🛰️(TROPOMI) and global modeling to learn more about #isoprene, very important organic gas released by plants and used as a tracer to better understand biological atmospheric-land interactions .

#atmoschem

pubs.acs.org/doi/10.1021/...

Structural and evolutionary insights into the isoprene monooxygenases Abstract. Isoprene, a highly reactive biogenic volatile organic compound (VOC) emitted by terrestrial vegetation, influences atmospheric chemistry but its

My first corresponding author manuscript has been published! 🥳

doi.org/10.1093/fems...

#uArctic_project #isoprene

🤔 Looks like a very useful add-on for MEGAN indeed. Will be having a closer look. #bVOC #isoprene
🌳🌳🌳🌳🌳

Looks like #isoprene is in the air… 🤩

Well… I didn’t win the prize but I did win on the experience 😉 😆
Genuinely, it was a great opportunity to translate my research, do some outreach and present my business idea! I’ll be posting my pitch very soon on my website 😉 #isoprene #uArctic_project

Enjoyed presenting an update of my summer #Sphagnum #DNA-SIP experiment after a great sampling trip to #Abisko.✨
@voltcenter.bsky.social’s PhD student Annika also presented an update on her experiment with #Sphagnum and #isoprene emissions at different 🌡️!

#moss #uArctic_project #highrisk⚠️

Our summer fieldwork has started to take shape in the lab! ⛰️🔬 Today’s lunch meeting featured talks on ongoing projects and experiments surrounding #moss and #isoprene, and discussions on the next steps ahead.

Picture of a seven year old clonal birch tree, genetically modified to emit large amounts of isoprene.

Plant-to/plant communication via #isoprene
onlinelibrary.wiley.com/doi/10.1111/...

This work is close to my heart. Working with isoprene for 30y, seeing that it not only affects #atmospheric chemistry, #ozone & #aerosol formation, but also helps plants sense their environment, closes a circle. 1/

Isoprene, the most abundant biogenic VOC, not only shapes atmospheric chemistry but also acts as an airborne signal in short-distance plant–plant communication. #isoprene #PlantResistance

🏔️Thrilled to see these little peaks emerging… so rewarding after all the planning! My SIP enrichment started yesterday. #uArctic_project #stable #isotopes #isoprene #sneakpeak #VOCpeak 🫣

Isoprene Production by Sphagnum Moss Is Balanced by Microbial Uptake, as Revealed by Selective Inhibitors Sphagnum moss, typical of northern peatlands, produces a range of volatile organic compounds, principally the climate-active compound, isoprene, which serves as a carbon source for specialist isopren...

So happy to see this paper out from my previous research group! 🤩
#isoprene #sphagnum
enviromicro-journals.onlinelibrary.wiley.com/doi/10.1111/...

Frontiers | Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species Plant responses to stress, inter-organismal signaling, and atmospheric chemistry are significantly influenced by leaf volatile isoprenoid (VI) emissions (e.g...

🌿 Excited to share my new paper in Frontiers in Plant Science!
"Leaf isoprene & monoterpene emissions vary with fast-slow carbon economics strategies in Amazon trees"

Check it out!

🔗 www.frontiersin.org/articles/10....

#Amazon #isoprene #monoterpenes #functionaltraits #BVOCs

Highly oxidised products of #isoprene - An underestimated source of #aerosols in the #atmosphere? New paper in @natcomms.bsky.social ‬ > www.tropos.de/en/current-i... / #clouds #climate #vegetation #forests @leibniz-gemeinschaft.de

I spoke about my #PhD work @biouea.bsky.social "Decoding #isoprene #degradation: #microbial #ecology through #DNA-SIP" and a little introduction to my @ec.europa.eu funded #uArctic_project 🍃 🦠

⏳At the beginning of April I completed 25% of my #MSCA placement @voltcenter.bsky.social. 😱

To celebrate, I wrote a #blog that I hope will help explain my fascination with #isoprene! 🌱

Click below to find out more! #uArctic_project

#fasttrack ⏩ Big experiment day! It’s looking good guys 🙌🏾 #moss #isoprene #uArctic_project 🍃💨

Isoprene emissions by Polytrichum 🚀 #uArctic_project #moss #isoprene #ppb #PTR #autosampler

It’s been a busy couple of weeks, full of teaching and outreach.

I had the pleasure to join @voltcenter.bsky.social team ( @yijiao.bsky.social) at the #ScienceIsWonderful event, organised by European Commission!

#sciencefair #isoprene #MSCA #uArctic_project

🧫 To the untrained eye 👁️, they’re just creamy colonies on Petri dishes. But to me, each isolate tells a story—about isoprene degradation and the microbial players behind it. Together, they’re helping me uncover the bigger picture of how this fascinating process came to be. #uArctic_project #isoprene

From 10,000 ppmv isoprene in the lab to just 100 ppbv in my moss experiments, the range of isoprene concentrations I work with is wild! 🚀

This pic is me adding high isoprene to isolates 🦠 —complete contrast to the subtle traces detected in moss 🍃!
#ScienceLife #Isoprene #Research #uArctic_project

Second work day of 2025 and it has been productive! Set up 11 replicates for each 🍃 #moss I’m testing this month… #uArctic_project #light #dark #isoprene

✨Take a look at the process with Hylocomium this morning 👩🏾‍🔬

Glass jars containing small shoots of silver birches growing under sterile conditions on a synthetic medium.

Do you know #isoprene, the most abundant hydrocarbon emitted by vegetation? - miniature forests in jars with sterile shoot cultures of GMO silver birch (Betula pendula) carrying the isoprene synthase gene from poplar help elucidating the biological & ecological functions of isoprene… #PlantScience

Microbial Isoprene Cycling Response in the Arctic | u-Arctic Project | Fact Sheet | HORIZON | CORDIS | European Commission Isoprene is a volatile organic compound (VOC) that accounts for more than a third of the total VOC emissions from ecosystems into the atmosphere. This VOC, primarily released by plants, is emitted at ...

2/3 Thrilled to see isoprene take center stage in the latest Nature cover! 🌍 My research on isoprene degradation is now even more relevant. Dive into the description of my new #uArctic_project:
cordis.europa.eu/project/id/1...

#ClimateChange #Isoprene #Microbiology

📢 #isoprene is on the Nature cover!

‘Isoprene drives formation of new particles in the upper troposphere’

Dec 5,2024

www.nature.com/nature/volum...

With advanced methods, we isolated/identified new bacteria and genes involved in breaking down #isoprene (a climate-active gas) from soils & plant leaves. This improves our understanding of isoprene cycling in the environment and could help refine climate models

www.frontiersin.org/journals/mic...

Started my first #moss experiments yesterday. Quite excited to see what comes from this! #VOC #isoprene #uArctic_project

Isoprene nitrates drive new particle formation in Amazon’... Aircraft measurements over the Amazon show that new ...

You can find the papers @nature here:
Curtius et al.: Isoprene nitrates drive new particle formation in #Amazon’s upper #troposphere. https://doi.org/10.1038/s41586-024-08192-4
Shen et al.: New #particle formation from #isoprene in the upper...

A Promise on a Mountain: My Path to an MSCA Fellowship | Nasmille Liceth Larke-Mejía About the promise I made at the Lost City 10 years ago and where I am today

🚨 New blog alert! 🚨

A Promise on a Mountain: My Path to an MSCA Fellowship

nasmillelarkemejia.com/a-promise-on...

#isoprene #uArctic_project

At today's VOLT-all meeting,PhD George Stoletov had his PhD Startup Seminar. His major focus will be on #isoprene and trying to decipher the #emission from #plants. We're excited to follow his progress! ✨️🌿

We have been hard at work 🧠 with George Stoletov and Suman Som setting up the #autosampler and #PTR-TOF for our experiments! #uArctic_project #isoprene #degradation #standards