In June 2020, Tropical Storm Amanda descended on El Salvador’s capital, San Salvador. Gale-force winds and torrential rains triggered more than 150 landslides and 20 major floods, tearing apart roads, electrical lines and almost 30,000 homes.

Coffee farmer Hector Velasquez, whose land sits on the exposed slopes of San Salvador Volcano, overlooking the city, was among those in the storm’s path. Over three days, the storm dumped 2m of rain on his farm, sparking a landslide that wiped out an area of around 3,000m².

“The landslides take away all the crops planted in that area, so you need to reinvest,” says Velasquez, 42, a father of two. “It drains resources when resources are scarce to begin with.”

When Velasquez was a child, rainfall in San Salvador was mostly a continuous-but-light drizzle spread across eight months. The soil had time to absorb the water. But, in recent years, climate change has made extreme storms more common in El Salvador.

 They are especially devastating around the capital, where rampant construction and road paving have created a concrete barrier that prevents rainfall from being absorbed into the ground.

But a movement is underway to change that. City officials and coffee farmers, with support from UNEP, have launched a project to restore 1,150 hectares of forests and coffee plantations. The goal: revive San Salvador’s ability to absorb rainfall.

In San Salvador, floods and landslides are washing away valuable topsoil, and with it the fertility of the coffee plantations. “The soil, for us farmers, is the wealth of our farm,” says Velasquez. “If we don’t have it, we don’t produce.”

Before a decline in production over the last 10 years, coffee had been vital for El Salvador’s economy, employing around 150,000 people in 2012. A report by the International Food Policy Research Institute estimates that by 2050, climate change could hit El Salvador’s coffee sector more than any other country in the world.

Enter the forest and coffee farm restoration project. Known as CityAdapt, it is premised on a simple fact. When vegetation is replaced with concrete, the ground loses its permeability. But trees and other vegetation can be used as sponges, drawing enormous quantities of water into the earth, preventing erosion, limiting floods and recharging groundwater supplies for times of drought.