Jack Eddy ties solar variation to Little Ice Age

In 1976, scientist Jack Eddy, who had previously worked at NCAR’s High Altitude Observatory, published research showing that a 70-year lull in sunspot observations that took place in 1645–1715 reflected a true decline in solar output, rather than an absence of reports. This period, named the Maunder Minimum after pioneering astronomer E.W. Maunder, coincided with a series of severe winters in Europe. Eddy's work helped steer scientists toward a broader recognition of solar variability and its possible influence on climate.