November 2010: Global Warming in Loire Valley

Etienne Neethling, trainee at the National Institute of Agronomical Research of Angers, made last autumn a synthesis of the meteo data from the 60 past years and of the maturity/ripeness controls over the 30 past years, all along the Loire Valley. Evolutions are astonishing:

Average temperatures
Average 1,3°C increase during the year, higher increase during summer than during winter.

Annual average stable with fewer and heavier rains.

Quantitative ripeness at harvest
From 1,5% to 2,5% increase in potential volume : 1 to 3 g/L decrease in total acidity.

Angers' climate is now compared to Bordeaux's 60 years ago...