Could artificial trees be part of the climate change solution?

Real trees are forced to work harder as more carbon is released into the atmosphere. Technology could share the load

In the fight against climate change, trees are an ally. They suck in carbon dioxide, reducing the harmful greenhouse gases. But there's a problem: we're asking them to work overtime.

Trees can't absorb enough of the carbon dioxide humanity is throwing at them unless we turn every inch of available land into a dense forest, according to Christophe Jospe, chief strategist at Arizona State's Center for Negative Carbon Emissions.

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