Phones don't handle heat well. I was outdoors the other day trying to take pictures while it was 90-something, and my phone had to cool off in between shots before it would let me use it again.
I think these news are overblown. There are many countries where temperatures of 115F are normal every summer, and people’s phones keep working normally.
The EU countries should pass some laws and regulations that they think would address climate change. I know they are not the biggest polluting nations in the world, but they can't expect anyone else to do something they have not done themselves, and Europeans can no longer wait for others to change.
They've been trying for 30 years... problem is that none of the member states are actually listening so it's a constant back and forth of "but can you pleaaaaaase start doing it now?" "maybe we'll consider in another 10 years"