Pirate's Cove

Goalpost shifting and Excuse Making. Or just a really, really misleading headline? (BTW, misspellings and formatting errors are in the news release, not mine. Mine are usually in the headline)

Volcanic eruptions slow down climate change — temporarily
Volcanic aerosols have acted during the last 10 years as a natural umbrella to slow down global temperature increase from greenhouse gases

Although global concentration of greenhouse gases in the atmosphere has continuously increased over the past decade, the mean global surface temperature has not followed the same path. A team of international reseachers, KIT scientists among them, have now found an explanation for this slowing down in global warming: the incoming solar radiation in the years 2008-2011 was twice as much reflected by volcanic aerosol particles in the lowest part of the stratosphere than previously thought. The team presents their study in Nature Communications (DOI: 10.1038/ncomms8692).

There must be something in the article that supports the headline. Hmmm, all the way to the end

Whether a volcanic eruption has a global climate impact or not depends on several factors. There is the amount of volcanic sulfur dioxide as well as the injection height. But also the latitude of the eruption is important: As the air flow in northern hemispheric stratosphere is largely disconnected from the southern hemisphere, only volcanic eruptions near the equator can effectively distribute the emitted material over both hemispheres. As in the Tambora eruption on the Indonesian Island Sumbawa 200 years ago. This eruption led to such a strong global cooling that the year 1816 was called „year without summer”, including worldwide crop failures and famines. Also the Krakatau eruption 1883 on Indonesia or the Pinatubo 1991 on the Philippines led to noticeable cooling. The present study now indicates that „the cooling effect of volcanic eruptions was underestimated in the past, because the lowest part of the stratosphere was mostly not considered. Interestingly our results show that the effect also depends on the season. The eruptions investigated by us had their strongest impact in late summer when the incoming solar radiation is still strong”, explains Dr. Sandra M. Andersson.

The news release itself never really makes the case that volcano eruptions are just temporary, it just discusses the effects, which, as the last paragraph shows, have been underestimated.

The big question is, if volcanoes, and the solar radiation, can have a cooling effect, why can they not have a warming effect? Why do Cult of Climastrology members only believe that Mankind is mostly/solely responsible for the warming?