André Butz
abutz.bsky.social
André Butz
@abutz.bsky.social
Atmospheric physicist, carbon cycle, greenhouse gases, photochemistry, radiative transfer, remote sensing, spectroscopy @Institute of Environmental Physics, @Heidelberg Center for the Environment, Heidelberg University
Reposted by André Butz
☀️New node up in Mannheim Sandhofen Pumpwerk 🚿
It marks the furthest north node of the UNICORN network.
Thanks to the Pumpwerk team and City of Mannheim for great support!
#ClimateAction #TrackingEmissions
October 11, 2025 at 6:41 AM
Reposted by André Butz
📢 New node at the Heidelberg City Library! 📚
We’ve just installed the eighth CO₂ sensor of the UNICORN network. The city center station completes the Heidelberg network. Mannheim, we are coming 🎡
Thanks to City of Heidelberg and the library for full support!
August 13, 2025 at 10:20 AM
Reposted by André Butz
🦄Meet the UNICORN Team: Kenneth Murai von Buenau

Kenneth is conducting his master’s thesis with UNICORN setting-up a 10m resolution transport model for Heidelberg and Mannheim to link emissions to CO2 measurements. His work will be fundamental to determine emissions from the measurements.
July 31, 2025 at 6:15 PM
Reposted by André Butz
Thanks to all the people helping us build UNICORN up. Great to feel your support, Stadt Heidelberg, Smart City Mannheim, PH Heidelberg Abt. Geographie, Collegium Academicum and @uniheidelberg.bsky.social!
Bluesky
auniheidelberg.bsky.social
July 26, 2025 at 6:26 AM
Reposted by André Butz
🦄Meet the UNICORN Team: Ralph
Kleinschek
With a strong background in optics and
engineering, Ralph Kleinschek oversees
the technical development of the
UNICORN network. His work is crucial
in translating research needs into
robust, field-ready measurement
systems.
July 18, 2025 at 7:05 AM
Reposted by André Butz
🦄 Meet the UNICORN Team: Prof. Dr. André Butz 
@abutz.bsky.social leads UNICORN with a focus on spectroscopic
techniques and novel instruments.
André fosters collaborative research across disciplines.

🌐 www.iup.uni-
heidelberg.de/en/research/atmosphere/atmosphere-and-remote-sensing-butz-group
July 11, 2025 at 5:31 AM
Reposted by André Butz
🦄 Meet the UNICORN Team: Dr. Sanam Vardag

@sanamnv.bsky.social leads the UNICORN team with expertise in greenhouse gas simulations and urban emission quantification. She is driven by a commitment to interdisciplinary collaboration for climate solutions.

🌐 www.iup.uni-heidelberg.de/en/research/...
July 4, 2025 at 10:50 AM
Reposted by André Butz
We’ve launched UNICORN – the University Network for CO₂ in the Rhine-Neckar Metropolitan Area 🌍🌆
 
UNICORN establishes a dense, urban CO₂ monitoring network to support science-based climate policy at the city scale.
 
🔗 Website: www.iup.uni-heidelberg.de/en/research/...
 
@uniheidelberg.bsky.social
UNICORN - Institute of Environmental Physics
www.iup.uni-heidelberg.de
June 23, 2025 at 12:28 PM
Reposted by André Butz
🌍 Excited for our group's work at #EGU25! From GHG sensing to AI-driven emission estimates & climate feedbacks. 🚀 Full list of contributions here: www.linkedin.com/posts/dr-san... #ClimateScience #GHG #RemoteSensing
#egu25 #climatescience #ghg #remotesensing #urbanmonitoring #itms… | Dr. Sanam Vardag
🌍 Excited to highlight our group's contributions to EGU General Assembly 2025! From GHG measurements and AI to ecosystem respiration and urban CO₂ networks — proud of the team’s broad reach! 🌟 🎤 T...
www.linkedin.com
April 28, 2025 at 7:55 AM