Reacción a "Reactions: Study attributes April's unusually high temperatures on the Iberian Peninsula to climate change"

The study is of the highest quality. The WWA (World Weather Attribution) initiative was initiated by Friederike Otto, one of the world's leading scientists in attribution studies. Attribution studies of extreme events around the world are carried out on an ongoing basis.  

I would particularly highlight the fact that, even in a warmer climate, the event experienced was very exceptional, with a return period of 400 years. Even so, without global warming the event would have been about 2°C lower, which confirms what we expressed as scientists a few weeks ago: without global warming such an extreme event was impossible. It must be said that these are very conservative estimates and it is likely that the estimate is underestimated due to modelling issues. That is why the authors say that, in the future, with a global warming of 2ºC, it could be an event with even higher temperatures of at least 1ºC. 

In terms of limitations, unfortunately, the study was limited to the southern half of the Iberian Peninsula, although impossible temperatures were reached even in the north.