Astrobiology is a relatively new and fast-growing science, whose main characteristic is to need expertises from different science fields. I'll show how the climate of a planet influences its abitability. Astronomers from OATs, climatologists from CNR and experts in databases from OATs joined their efforts to build a fast, simplified, yet effective climate model and database for extra-solar planets. I will describe the model, its main feature, its validation, its application to a specific exo-planet (Kepler 452b). I will then show how such a model can be used to explore a huge parameter space and build a database that can be used to characterize classes of habitable planets. I will point out how this particular case is an good example of High-Throughput  Computing (HTC). Our database can also be used, e.g.,  as a tool to get a first estimate of the habitability of a newly discovered rocky planet. Then I will describe possible future developements of such a research line, including the study of the effect of the biosphere itself on the habitability.