Their sources include church records, commissions of inquiries into glacier disasters, taxes on farms affected by glaciers, town records, population records, illustrations and lithographs, observations by travellers and scientists, scientific papers, historic articles on glaciers from contemporary sources in English, French, German and Italian, correlation with wine and
grain harvest dates, alpine clubs, mountaineers and tree line / plant growth records amongst other sources.
In addition to direct crop damage from increasingly intense precipitation events, wet springs can delay planting for
grain and vegetables in New York, for example, and subsequently delay
harvest dates and reduce yields.67 This is an issue for agriculture nationally, 65 but is particularly acute for the Northeast, where heavy rainfall events have increased more than in any other region of the country (Ch.