Don’t just plant trees, plant forests to restore biodiversity for the future. People plan to plant more than 1 trillion trees this decade in an ambitious effort to slow climate change and reduce biodiversity loss. But if the past is prologue, many of those planted trees won’t survive.

Large-scale tree planting can remove some CO2 from the atmosphere, but nowhere near as much as humans add by extracting and burning fossil fuels. See https://skepticalscience.com/1-trillion-trees-impact.html for a detailed assessment of what this looks like.

The IPCC has a [chart showing what actions need to be taken over the next few years](https://www.ipcc.ch/report/ar6/wg3/figures/summary-for-policymakers/figure-spm-7/). Afforestation is one piece of many things, all of which we need to do.

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