Scientists say data from Antarctica ice core shows world has already warmed 1.49 degrees Celsius due to human activity.
The study calculates a pre-1700 baseline based off carbon content in the ice.
What's next?
Researchers behind the study want politicians and scientists to use their modelling as a baseline rather than a commonly used 1850-1900 time period when the Industrial Revolution had already started.
zero_gravitas in environment
CO2 in bubbles locked away in Antarctic ice suggest Earth has almost reached 1.5C warming limit [based on new pre-industrial temperature estimate]
https://www.abc.net.au/news/science/2024-11-12/climate-change-warming-limit-close-antarctic-ice-reveals/104585566