During the procedure. If you have an interval tubal ligation as an outpatient procedure, either a needle is inserted or an incision is made through your navel so your abdomen can be inflated with gas (carbon dioxide or nitrous oxide). Then a laparoscope is inserted into your abdomen.
Climatology is the study of the myriad factors that influence weather, and the influence of weather on the environment. These include water, atmosphere, and geology. Climatology studies all of these things over the course of time, typically a 30 year cycle.
This modern field of study is regarded as a branch of the atmospheric sciences and a subfield of physical geography, which is one of the Earth sciences. Climatology now includes aspects of oceanography and biogeochemistry.