#wanttoknow! – the Tomorrow Today viewer question comes from Amula Dorley in Monrovia, Liberia
Soils are a double-edged climate sword. They are huge reservoirs of organic carbon and can act as a carbon sink. But they can also release CO2 into the atmosphere when used unsustainably.
As the global population swells, so does the need for food. Could a Netherlands approach to farming that doesn't rely on soil, sunshine, water and pesticides be the answer?
Some plants can suck up and store heavy metals. They can help clean up contaminated soil and extract valuable metals from the ground by a process of phytomining - all without a pickaxe or shovel.
Hayabusa 2 has landed on the asteroid and is collecting rocks and dust to take back home to Earth. Landing on a moving object in outer space is not an easy feat. Researchers are celebrating the achievement.
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