Environmental Science
Phytoremediation: Using Plants to Clean Contaminated Soil
Quick fact
Certain plants, known as hyperaccumulators, can concentrate heavy metals like nickel or zinc in their tissues at levels thousands of times higher than what's present in the soil, sometimes even producing metal-rich 'bio-ore' when harvested.
Why this is interesting
Imagine cleaning a toxic waste site not with giant machines or chemicals, but with a field of sunflowers. How can plants—seemingly delicate—absorb and neutralize dangerous pollutants from the soil?