Phoenix residents don’t need to be reminded it’s hot in June. But it can be helpful to have a refresher on how to keep yourself, your loved ones and your community safe when summer temperatures arrive. And data-driven insights into how much a warming climate has influenced modern heat extremes and their impacts don’t hurt, either.

That’s the purpose of the International Federation of Red Cross and Red Crescent Societies’ “Heat Action Day,” scheduled for Sunday. The IFRC is the world’s largest humanitarian network and, as such, has put resources into tracking how climate change has exacerbated the human toll of rising temperatures.