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Kampala, Uganda — A supercomputer is boosting efforts in East Africa to control a locust outbreak that raises what the U.N. food agency calls “an unprecedented threat” to the region’s food security.

The computer, a donation from Britain, uses satellite data to track locust swarms and predict their next destination. Quickly sharing the information of the locusts’ movements with regional authorities is key to controlling the outbreak, as even a small swarm of locusts in a single day can move nearly 100 miles and consume the amount of crops that would otherwise feed 35,000 people.

Based in a regional climate center in Kenya, where the insects have been particularly destructive, the supercomputer system “produces extensive weather forecasts to predict the high winds, rainfall, and humidity that provide ideal breeding conditions for locusts so climate experts can predict their next destination,” the U.K.’s Department for International Development said in a statement.

Kenya, Somalia and Uganda have been battling the worst locust outbreak that parts of East Africa have seen in 70 years. Swarms have also been sighted in Djibouti, Eritrea, Tanzania, Congo and South Sudan, a country where roughly half the population already faces hunger after years of civil war. Locust swarms, sometimes as large as some cities, can destroy crops and devastate pasture for animals.

Aerial spraying is generally considered the only effective control method. In Uganda, where the locust infestation has recently spread to more than 20 districts in the country’s north and northeast, soldiers have been battling swarms using hand-held spray pumps because of difficulties in getting aircraft as well as the recommended pesticide.

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