Dr.Leif, in a very new paper www.nature.com/articles/srep15689 the authors claim to know the behavior of the sun ( it's activity) up to year 3200. They reconstructed the activity (SSN) of the last 1000 years with "remarkable agreement" to the observations.
(Source: fig. 3 of the mentioned paper) What's your opinion about the method in the paper and the conclusions? best Frank PS: They confirm that SC 25 won't be an "extra weak":
Dr. Svalgaard, if I remember correctly your view is that the stratosphere is heated from above and the troposphere is heated from below. As I understand this article link there is a claim that much of the stratospheric heating is from below. Is there any merit to this claim in your opinion?