This is the 525th most frequent Catalan word.
climàtic
"Climàtic" means "climatic" in English, relating to climate.
Here, 'climàtic' is used in its plural form 'climàtiques' to describe 'qüestions', specifying the subject of the issues as relating to the climate.
La reunió es va centrar en qüestions climàtiques.
The meeting focused on climatic issues.
In this sentence, 'climàtic' describes 'factor', indicating that the factor pertains to climate or its characteristics.
El factor climàtic determina el tipus de vegetació.
The climatic factor determines the type of vegetation.
The word 'climàtic' here is used as an adjective modifying 'canvi', denoting the type of change being climate-related.