How Global Warming is Changing Hailstones
The earth is warming. And warmer air holds more water vapor than colder air. This is having an impact on hailstones. Although a lot of research is still on-going, the early indications are that in the warmer air, hail is happening a bit less often, but the hailstones are getting bigger. You can read the whole report here: How climate change is leading to bigger hailstones – BBC Future