I discovered a farm's diary when I began my master's thesis in historical climatology. After a tip about a historic source - a farm diary that existed in Hamar, Hedmark County in eastern Norway - I could start my thesis. These diaries contained weather and climate information far back in time (around 1750 AD). This was unique for Norway, since we were a peasant country, and few in Norway could write at that time.
Find out how scholars in diverse disciplines are studying past climate changes.