In order to understand how, and why, the changes in our climate happening today are not natural, and pose a danger, we need to understand the long-term climate context – how climate has changed in the past – and how human action has impacted the natural greenhouse effect.
Studying how our climate has changed throughout time gives context to the changes we are experiencing now. As meteorological records are only available for the last century, we need to analyse natural archives of climate to gain a longer-term picture.
The Tree Ring Research Group at Swansea University are world-leading experts in the analysis of the climate information stored in tree rings. The group samples ancient trees from forests on every continent where trees grow.