Climate Migration: El Salvador

As immigration issues along the US southern border continue to roil the country, one driving force of migration from troubled Central American countries has received relatively little notice–climate change:
https://www.theguardian.com/world/2018/oct/30/migrant-caravan-causes-climate-change-central-america

Thousands of Central American migrants trudging through Mexico towards the US have regularly been described as either fleeing gang violence or extreme poverty, but another crucial driving factor behind the migrant caravan has been harder to grasp–climate change:

https://www.pri.org/stories/2018-07-15/climate-change-contributing-migration-central-american-refugees