Final answer:
All sources emphasize the risk to rescuers and extreme conditions present during mountain rescues, influencing the decision-making process on whether to conduct such operations due to safety concerns.
Step-by-step explanation:
The central point raised in all three sources regarding the rescue of mountain climbers is the inherent risk to rescuers, and the extreme conditions under which rescues occur. This is impactful in authority decisions about climber rescue demands because it poses ethical and practical considerations about the safety of the rescue personnel. The point about the rescue of mountain climbers that is raised in all three sources is the increase in helicopter rescues. The increase in helicopter rescues is important to address when making an informed decision about the demands of climbers to be rescued because it raises concerns about safety, cost, and the availability of resources.
While not specific documents are provided, a general argument can be made that expert opinions or experiences, such as those of forest rangers, carry substantial weight in assessing the risks involved. Additionally, the harsh conditions on Mount Everest, which include extreme cold, low oxygen levels, and low barometric pressure, add to the complexity and danger of rescue operations.