Could superpowered plants be the heroes of the climate crisis?

Carbon-guzzling trees and crops, genetically altered to boost photosynthesis and store carbon in the roots, could absorb millions of tonnes of CO2 from the atmosphere In an asphalt-surrounded greenhouse at the back of a business park in Hayward, California, on the shores of San Francisco Bay, a sea of more than 200 leafy, green, hybrid poplar saplings are itching to break free from their pots. Among them stands Maddie Hall. The trees are all "mother trees", explains Hall, co-founder and CEO of c...