From drones to genetic modification to blocking the sun.
The history of human invention has not always been kind to the environment.
Cars and coal factories have partly driven climate change. Early air conditioners tore a massive hole in the ozone layer. Pesticides have destroyed ecosystems and harmed wildlife. And now plastic is choking the oceans.
But some inventions rehabilitate, protect, and rejuvenate the Earth.
These inventions have become all the more necessary as the planet faces a range of existential threats from climate change to deforestation to ocean acidification, and more.
Drones That Plant Trees