https://www.cbsnews.com/news/planting-a-trillion-trees-could-be-the-most-effective-solution-to-climate-change/#According to a new study in the journal Science, planting billions of trees around the world would be the cheapest and most effective way to tackle the climate crisis. Since trees absorb carbon dioxide, which contributes to global warming, a worldwide planting initiative could remove a substantial portion of heat-trapping emissions from the atmosphere.
The researchers say a program at this scale could remove about two-thirds of the carbon dioxide (CO2) emissions caused by human activities since the start of the industrial revolution, or nearly 25% of the CO2 in the atmosphere.