www.antena3.ro/externe/mapamond/o-scoica-uriasa-co

A giant clam from the Great Barrier Reef has provided researchers with detailed climate data from 225 years ago, revealing cooler summers and similar winter temperatures compared to today. The clam, Tridacna gigas, acts as a natural archive, recording daily and seasonal changes in its shell. Analysis of its growth lines and isotopes has allowed scientists to reconstruct past marine temperatures and precipitation patterns, indicating significant climatic shifts during the late 1700s and early 1800s. This research highlights the importance of local records in understanding historical climate variations in the Southern Hemisphere.