noun
climatologist
A scientist who studies climate and long-term weather patterns.
彼女は気候学者として、地球温暖化の研究をしている。
As a climatologist, she researches global warming.
気象学者 is a meteorologist who studies short-term weather, while 気候学者 focuses on long-term climate patterns.
Compound of 気候 (climate) + 学者 (scholar, -ologist).