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cover of episode Is carbon offsetting a con?

Is carbon offsetting a con?

2025/1/9
logo of podcast What in the World

What in the World

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Esme Stallard
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Joshua Gabriel Oluwaseyi
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Esme Stallard:碳抵消旨在补偿那些难以减少碳排放的行业(如航空业)的排放。其原理是将资金流向发展中国家,帮助他们减少排放,从而实现全球减排目标。碳抵消项目主要分为三类:减排、移除和避免。减排指减少排放源头产生的排放,例如推广使用太阳能灶具代替传统燃煤灶具;移除指从大气中去除已排放的碳,例如植树造林;避免指防止碳排放进入大气,例如保护森林。碳抵消项目的有效性取决于“持久性”和“附加性”两个关键原则。持久性指项目效果能否长期持续,附加性指资金投入是否真正带来了额外的减排效果。一项研究表明,只有约16%的碳抵消项目实现了其声称的减排效果,主要原因是减排效果被高估了。碳抵消项目可能对当地居民造成负面影响,例如侵犯土地权利等。快速生长的树木虽然能快速吸收碳排放,但可能会对当地生态系统造成负面影响。碳抵消应该作为最后手段,仅用于处理那些难以减少的排放。如果公司或国家过度依赖碳抵消,则可能忽视了在其他领域减少排放的努力。 Joshua Gabriel Oluwaseyi:碳抵消项目表面上能创造就业机会和改善环境,但实际上可能导致当地居民流离失所。考虑到非洲国家碳排放量相对较低,利用非洲进行碳抵消在道德上是否正当值得商榷。个人应该尽力减少碳排放,例如节约用水用电,但碳抵消不应被视为唯一的解决方案。个人可以通过选择更环保的航空公司或购买碳信用额来进行碳抵消,但权力更大的个人(如政治家和企业领导人)应该采取更多措施。

Deep Dive

Key Insights

What are the three main categories of carbon offsetting projects?

The three main categories are reduction (e.g., replacing gas or coal cook stoves with solar panels), removal (e.g., planting trees or using technology to capture and store carbon dioxide), and avoidance (e.g., protecting forests to prevent CO2 release).

Why is the 'avoidance' category of carbon offsetting considered controversial?

Avoidance is controversial due to issues of permanence (ensuring long-term protection of forests) and additionality (proving that the protected forest would have been cut down without the offset funding). These challenges make it difficult to guarantee the effectiveness of such projects.

What percentage of carbon offset projects achieve the emissions reductions they claim?

Only about 16% of carbon offset projects achieve the emissions reductions they claim, according to a 2024 study published in the journal Nature. Overestimation and lack of robust assessment methods are key reasons for this low success rate.

What are some potential negative impacts of carbon offsetting on local communities?

Carbon offsetting can harm local communities through land displacement, lack of consent, and environmental damage. For example, in Cambodia, mass clearing of land for reforestation led to the removal of local people without their consent, highlighting power dynamics and human rights concerns.

What is the role of Article 6 in the Paris Climate Agreement regarding carbon offsetting?

Article 6 of the Paris Climate Agreement establishes a global carbon market, allowing richer nations to pay developing countries to reduce emissions and count those reductions toward their own climate targets. This was finalized at COP29 in 2023, aiming to create a structured financial flow for emissions reduction.

What is Joshua Gabriel Oluwaseyi's perspective on carbon offsetting in Nigeria?

Joshua views carbon offsetting as a complementary tool rather than a standalone solution. While it can provide jobs and revenue, he highlights concerns about land displacement and the moral implications of using Africa, which contributes less to global emissions, for offsetting purposes.

What advice does Esme Stallard give to individuals considering carbon offsetting for flights?

Esme suggests that individuals should research and be aware of the impact of carbon offsetting. While she doesn't explicitly recommend buying offsets, she emphasizes the importance of informed decisions and exploring other actions, such as supporting sustainable companies or governments.

Shownotes Transcript

Carbon offsetting is a way to try to balance carbon emissions. It’s when an individual, company or governments invest in projects that try to take carbon dioxide out of the atmosphere, to compensate for their own carbon footprint.

Many of the schemes - like planting trees, protecting forests or switching to cleaner fuels - are set up in places like Africa or South America.

But how do these schemes work in practice? A paper published in 2024 in the science journal Nature found that few schemes led to a “real emission reductions“. Are they just a distraction or worse - a con? BBC climate and science reporter Esme Stallard answers our questions.

And Joshua Gabriel Oluwaseyi, a 24 year old climate activist in Nigeria, gives us his view on the impact carbon offsetting schemes have had in Nigeria - and whether he thinks they are worth doing.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Julia Ross-Roy and Maria Clara Montoya Video Journalist: Baldeep Chahal Editor: Verity Wilde