Read here. Another study establishing the global extent of both the Medieval Warming Period and the Little Ice Age that Climategate scientists insist occurred only in the European region. In addition, the study found that MWP temperatures were warmer than those claimed to be "unprecedented" in the 20th century. The research also indicates a strong solar-climate relationship.
- Kitagawa and Matsumoto also report finding significant temperature periodicities of 187, 89, 70, 55 and 44 years. Noting that the 187-year cycle closely corresponds to the well-known Suess cycle of solar activity and that the 89-year cycle compares well with the Gleissberg solar cycle, they conclude that their findings provide further support for a sun-climate relationship.
