The best technology to save the world: trees

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Oxford University scientists, after a year of research, have determined the best technology to absorb carbon dioxide from the atmosphere and try to reverse global warming.

It’s trees!

They considered methods ranging from capturing emissions from factories and power stations to extracting carbon dioxide directly from the air, and adding lime to oceans to increase their absorption of the gas, a study released on Tuesday showed.

None were more promising than planting trees, or baking waste wood to form a type of charcoal that can be added to soil. Relative to other so-called Negative Emissions Technologies, afforestation and biochar are low-cost, have fewer uncertainties and offer other benefits to the environment, the research shows.

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