Was verursacht den jüngsten Anstieg der globalen Temperaturen?

It’s the Hunga-Tonga! Occurred from December 2021 to January 2022. From the article:

The eruption was the largest explosion recorded in the atmosphere by modern instrumentation, far larger than any 20th-century volcanic event or nuclear bomb test. It is thought that in recent centuries, only the Krakatoa eruption of 1883 rivalled the atmospheric disturbance produced.[14][15]

https://en.m.wikipedia.org/wiki/2022_Hunga_Tonga–Hunga_Haʻapai_eruption_and_tsunami