Brazilian Sugarcane Ethanol Expansion and CO2 Offset Projections

A 2020 study by Deepak Jaiswal models the potential expansion of Brazilian sugarcane ethanol as a green alternative to crude oil. It projects that by 2045, this system could provide the equivalent of 3.63 to 12.77 million barrels per day of crude oil, offsetting 0.55 to 2.0 Gigatons of CO2 annually. The analysis considers constraints from food demand, animal feed production, and forest conservation under climate change scenarios.

Use Cases

• Model future land-use change for sugarcane cultivation under projected climate change scenarios.
• Analyze the trade-off between ethanol production and food/animal feed demand for future land allocation.
• Calculate CO2 offset potential (0.55–2.0 Gt yr−1) of ethanol expansion relative to global crude oil consumption and emissions.
• Assess energy security impacts by comparing projected ethanol oil-equivalent (3.63–12.77 Mb d−1) to 2014 global crude oil consumption data.
• Evaluate the carbon payback period (2–8 years) for emissions from land-use change to sugarcane.

Strengths

• Quantifies CO2 offset potential with a specific projected range of 0.55 to 2.0 Gigatons per year.
• Provides concrete oil displacement projections of 3.63 to 12.77 million barrels per day by the year 2045.
• Explicitly accounts for multiple real-world constraints including food security, forest conservation, and climate change impacts.
• Published in 2020 with data and analysis supporting a peer-reviewed scientific study.

Limitations

• The dataset's underlying model projections and assumptions are not visible without the full study data and code.
• Geographic scope is limited to Brazil, limiting direct applicability to other biofuel-producing regions.
• Future projections to 2045 are subject to significant uncertainty from climate, economic, and policy variables.

Provenance

Source

Dryad digital repository.

Collection Method

Modeling and analysis supporting a scientific publication.

Time Range

Projections extend to the year 2045.

Freshness

Last updated in June 2020.

Geography

Brazil.