Planting more than 500 billion trees could remove around 25 percent of existing carbon from the atmosphere, a new study has found. What's more: there's enough space to do it.
The study, published in Science Friday, set out to assess how much new forest the earth could support without encroaching on farmland or urban areas and came up with a figure of 0.9 billion hectares, an area roughly the size of the U.S., BBC News reported. That makes reforestation "the most effective solution" for mitigating the climate crisis, the researchers concluded.
London skyline and Primrose Hill Park. NicolasMcComber / E+ / Getty Images