In 2009 Brigham Young University conducted a study trying to answer why glaciers grew even when Asia was heating up 9 kya. After all, everyone knows ice is supposed to melt when heat is applied to it right?
These growing glaciers are located in the southeastern Himalayas. Most glaciers in Central Asia at this time were retreating as hotter summer temps cam about. But these glaciers in the SE Himalayas grew 1-6 kilometers!
Stronger monsoons were thought to be the cause of the glacier growth but BYU research found that only about 30% of snowfall from more intense monsoons could be attributed to the growth of these glaciers as Asia was heating up. Shifting weather patterns apparently brought more clouds to the area and the additional shade created a pocket of colder temps. Higher winds also are believed to have contribute to the growth of these glaciers and these higher winds caused more evaporation in this typically humid area.
So it appears not all glaciers respond to global temperature increases and I’d say the opposite if likely also true, that is, not all glaciers respond to global temp decreases! Some local regions seem to have had their own little micro-environments going on that went against the global grain! Of course that is also true in our own times too.