A farm in Japan is to employ robots to help grow vegetables. The new technology will enable the owner to save 50 percent on wages. So will humans be out of a job?
When a group of Brazilian families occupied disused farmland they found lifeless soil and water. Fifteen years on, they have brought it back to health. Their story is part of a larger battle over Brazil's farming future.
Droughts, floods and storms are hitting Africa with increasing frequency. With so many people dependent on subsistence agriculture, the results can be devastating, and the future looks uncertain.
In wars of the future, life-or-death decisions may be made by machines — independent of human control. The development of autonomous weapons is moving fast. The UN in Geneva is trying to get countries to agree on a ban.
Glyphosate is a herbicide that's used to kill undesired plants. Pulling up plants, or "weeding," does the same thing without chemicals, but it’s very labor-intensive. What if tireless robots could weed fields cheaply?
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