Including the new logbooks, the Old Weather effort has scanned more than 500,000 handwritten pages from historic ship logs, and Old Weather volunteers have so far transcribed almost 3 million historical weather records for use in climate and environmental research. (sciencedaily.com)
They compared historical weather records, an 1,800 - year - long simulation of the climate pre-Industrial-Revolution, and 40 simulations of climate change from 1920 to 2100 (assuming high future greenhouse gas emissions). (arstechnica.com)
Checking back through historical weather records reveals that it was roughly 10C in 2009, just above the freezing mark in 2010, and about -5 C last night. (blogto.com)