My question: Does the following sentence make sense?
"Paleoclimatology relies heavily on proxy methods, since there is no way to directly observe historical climates."
Options:
- yes
- no
Please think gradually:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A variety of techniques are used to approximate and gauge temperatures from times before recorded history.
Thus, the answer is yes.