At the National Astronomy meeting in Wales, 2015, Northumbria University professor Valentina Zharkova said fluctuations in an 11-year cycle of solar activity could cause global cooling starting in 2030: A decade long ice age is predicted as sun 'hibernates.' Scientists claim we may be in for a decade-long freeze as the sun slows down solar activity by up to 60 per cent. Can't imagine what that much less energy from the sun would mean for life on Earth. The wind turbines generating electricity would be iced up and stop turning or break. The solar panels would be covered in snow.