Droughts

Section 1What a drought is

A drought is a prolonged period of below-normal rainfall for a region, severe enough to cause significant shortages of water for people, agriculture, or ecosystems. Crucially, drought is defined RELATIVE to the normal climate — a dry month in a wet rainforest could be drought; the same month in the Sahara is just normal weather.

Section 2What causes droughts

Causes include persistent high-pressure systems that block rain-bearing weather, shifts in ocean current and wind patterns (e.g. El Niño changes rainfall worldwide), and long-term climate change. Human factors like deforestation and poor water management can worsen the impact.

Section 3Effects

Water shortages for drinking and washing. Crop failure as soil dries out. Livestock deaths and reduced milk/meat yields. Wildfires fed by dry vegetation. Food insecurity and rising food prices. In severe cases, mass displacement of people. In Jamaica, droughts have repeatedly stressed agriculture and rural water supplies.

Section 4Responses

Short-term: water rationing, emergency tank trucks to dry communities, drought-relief programmes. Long-term: building reservoirs and water-storage infrastructure, choosing drought-resistant crops, planting trees to retain moisture, and educating communities on water conservation.