Scientists can now 'see' invisible greenhouse gas clouds coming out of individual cows from a distance using thermal video.
April 14, 2026
Original Paper
TRACE: Thermal Recognition Attentive-Framework for CO2 Emissions from Livestock
arXiv · 2604.09648
The Takeaway
Instead of trapping cows in specialized chambers or putting sensors on their faces, this mid-wave infrared system tracks CO2 plumes while they roam free. This makes it possible to identify the highest-emitting cattle in a herd in real-time to help fight climate change.
From the abstract
Quantifying exhaled CO2 from free-roaming cattle is both a direct indicator of rumen metabolic state and a prerequisite for farm-scale carbon accounting, yet no existing system can deliver continuous, spatially resolved measurements without physical confinement or contact. We present TRACE (Thermal Recognition Attentive-Framework for CO2 Emissions from Livestock), the first unified framework to jointly address per-frame CO2 plume segmentation and clip-level emission flux classification from mid-