Réponse :
1) The document is an article from the website "EcoWatch.com" written by Cole Mellino in 2016. This article deals with "climate refugees" which are forcerd to diplace from their homes because of climate changes.
2) They exist different disasters that can be caused by climate change : flooding, drought and sea level rise.
3) These disasters have for consequences to displace communities from their homes. Their homes are destroyed by these disaster or the place become uninhabitable (for instance drought prevent people to cultivate). Sea level rise will displace a lot of people because their homes will be flood by water.
