A new study published in the Proceedings of the National Academy of Sciences reveals that human-caused climate change was likely detectable as early as 1885, much earlier than previously believed. Researchers used climate models and stratospheric data to identify a clear signal of human impact, even before the widespread use of automobiles. This finding emphasizes the significant and rapid impact of greenhouse gas emissions on the atmosphere and underscores the importance of continued atmospheric monitoring, particularly given recent budget cuts to crucial climate research programs.

Prepared by Olivia Bennett and reviewed by editorial team.