Can the Plant That Reversed Globalwarming Do It Again Fern

Tree planting schemes have always been pop, simply never more than and so than today, where they are frequently promoted every bit a proposed solution to the climate crisis. In that location is a long, painful history of bad tree plantation projects, mainly in the Global South but also in the North, where tree planting projects have caused deforestation and social misery, as well as increased climate modify. This FAQ explains some of these bug.

Can tree planting solve climate alter?

No, planting new trees alone cannot solve climate change – but when combined with well-thought out restoration of existing forests and reducing emissions, tree planting tin play a significant role.

Copse absorb carbon dioxide (CO_ii) during photosynthesis, in which they use sunlight to convert that CO₂ into the sugars and energy they demand to grow. The carbon is stored in biomass – the trunk, roots and leaves – as well as in the soil. Planting trees could therefore help mitigate climate breakdown, since they blot CO₂ as they grow, and the carbon remains stored until the wood decomposes or is burnt.

Tree planting will not, however, help the climate if trees are then cutting downwardly and burnt for energy; copse are planted in a manner that doesn't consider local biodiversity needs; trees are planted instead of reducing CO₂ emissions (offsetting); tree planting diverts attention from the need to protect existing, mature forests.

Biodiverse tree planting can contribute to addressing the climate emergency, but only if we also reduce emissions and protect and restore existing forests.

Are planting trees and wood restoration the same thing?

Tree planting and forest restoration do non mean the aforementioned matter, though tree planting tin be an element of forest restoration, if carried out appropriately.

Tree planting simply refers to the act of planting trees in the footing, usually immature trees (or saplings).

Restoration, on the other manus, is returning a forest ecosystem to a previous, healthy state. In a biodiverse natural forest, at that place are a range of copse of different ages.

The forest keeps re-generating naturally and supports a circuitous web of flora and fauna. If a woods has been degraded - for example through clearcutting - it may exist possible to bring it back to a healthy state. Planting new trees can be function of this, as long every bit native trees are prioritised, and at that place is a range of species to ensure biodiversity is maintained. Forests can be restored in different means including moving from clearcutting and planting monocultures to community forestry, close-to-nature forestry, or 'setting aside' land, with customs support, to allow the forest to regenerate on its ain without whatsoever interference.

Find out more well-nigh forest restoration

Eucalyptus plantation (on the right) versus a various forest (on the left)

Are young or old trees more important for arresting CO₂?

Variations exist in the rate and levels at which trees absorb CO₂, depending on the local conditions and exact species involved.

Contrary to some industry claims, copse tin proceed to absorb carbon well past 600 years of historic period! Older forests non but go along to remove CO₂, they likewise store huge amounts of carbon in their trunks and roots as well as in the undisturbed soil below the forest. The largest ane per cent of trees contain one-half of all the carbon, so we demand to driblet the idea of prioritising young trees over sometime.

Protecting existing forests are our best promise of tackling climate and biodiversity breakdown.

Any young trees we plant now will be important for the future, but information technology will take them a long fourth dimension to catch upward with older forests' power to store carbon. Nosotros therefore need to prioritise protecting and restoring the forests nosotros already have.

What'southward the difference betwixt reforestation and afforestation?

• Reforestation refers to the planting of copse on deforested lands.
• Afforestation refers to planting copse on land which, historically, has not contained forests.
  

What blazon of tree planting programmes do more than impairment than adept?

The post-obit kinds of afforestation programmes can cause serious damage:

• where copse are not suited to the local climate and conditions

• where existing biodiverse ecosystems are destroyed or disrupted (for instance native grasslands or wetlands which are already interim every bit important habitat)

• where only ane kind of tree is planted rather than a mix of species which would exist more climate- and pest-resilient

• where the trees which are planted are logged over and again without allowing the woods to mature

• where soil and h2o pollution are increased

• where local communities are not involved or properly consulted (for case when only those in positions of power accept a say), resulting in livelihoods loss, disconnect from nature or state-grabs

• where there is a poor project governance, which oft results in expressionless plantations. Plantations and nurseys ofttimes accept very low success rates and local community governance and noesis about ecosystems is incredibly important for the wellness of ecosystems and of people living in them.

Find out more nigh human rights based forest restoration

Categories: FAQs, Forest Restoration

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Source: https://www.fern.org/publications-insight/can-tree-planting-solve-climate-change-2172/

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