Other
Climate change: the trouble with trees
- Global climate stabilization requires carbon emissions to reach net zero by 2050.
- Ireland is projected to achieve only a 5% reduction in greenhouse gas emissions by 2020 if current trends persist, failing to meet its 20% target.
- Ireland has set a goal to cover 18% of its land with forest by 2046.
- Restoring forests on all land previously held before agriculture could store approximately 200 billion tonnes of carbon, equivalent to 20 years of current global emissions.
- Planting trees alone is considered insufficient to offset all fossil fuel emissions due to constraints on global land availability.
- Simon Lewis predicts that pledges to plant millions of trees will fail to deliver expected carbon capture if established as monocultures rather than natural forests.
- It is projected that tree planting pledges will store 26 billion tonnes less carbon compared to scenarios where all planting results in natural forests.
- Carbon stored in monoculture plantations, such as eucalyptus, is at risk of re-release into the atmosphere upon harvesting every 10 years for short-term products.
- The application of fertilizers to dense conifer plantations is expected to contribute to nitrous oxide emissions.
- Experts anticipate that if carbon becomes a more valuable commodity, natural forests could become more profitable than monoculture plantations.
- Future financial incentives are expected to shift to support natural forests, aiming to provide climate benefits alongside advantages for local people and wildlife.
- Carbon payment mechanisms are viewed as a potential catalyst to make natural forests economically viable.