Thiese things will happen from time to time where there is hot or cold weather. People who aren't used to the clima underestimste their knowledge, the nature and how well trained and prepared they are. Heat, cold, water, avalange, wind etc will take life, as long as people don't respect the nature proper.
It's very sad, and it could be easier to avoid if people understood how hot it can be in some deserts, and how cold other contries can be. People have died in their cars in wintertime, because they don't respect that roads are closed because of the snow. And they don't have anything in the car to survive a couple of cold days and nights or are able to head back if they are stuck.
And you see it when it's really bad weather at the ocean. People get to close to the sea, and are taken by the waves and drowns.