Achieving climate goals with biochar from Sonnenerde

CO₂ Reduction – Sonnenerde’s Clear Goal

Too much CO₂ in the atmosphere

Climate change is no longer an abstract theory but a threat to life on Earth as we know it. A major factor driving climate change is human-caused CO₂ emissions. To reduce the risks and impacts of climate change, all countries worldwide committed under the Paris Agreement to limit global warming to 1.5 °C above pre-industrial levels. This means greenhouse gas emissions must be drastically reduced.

This target of 1.5 °C can only be achieved, even with a 100% phase-out of fossil fuels, through the development of carbon capture technologies that remove CO₂ from the Earth’s atmosphere. This CO₂ removal is also called “negative emissions.”

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What we at Sonnenerde are doing for our climate goals

1) CO₂ reduction at Sonnenerde:

Alle Produkte von Sonnenerde sind 100% torffrei (beim Torfabbau wird CO₂ freigesetzt)
Schritt für Schritt elektrifizieren wir unsere Maschinen und den Mitarbeiterfuhrpark
Betrieb einer Photovoltaik-Anlage
Wir achten auf Regionalität bei der Rohstoffverwendung und Rohstoffentsorgung (Einsparung von Transportkilometern)

2)CO₂ sequestration at Sonnenerde:

Through composting, we bind CO₂ in stable humus and produce soil products from it.
We create “negative emissions” by producing biochar through carbonization.
In the past 10 years, around 2,000 tons of biochar have been produced, binding approximately 4,000 tons of CO₂.

Historical and future CO₂ emissions in an IPCC scenario (RCP1.9), where the Paris climate target can be achieved through a combination of rigorous emission reductions and massive expansion of carbon sinks. The brown curve shows the emission reduction path, the green curve the carbon sink expansion path. The light gray lines represent alternative paths where even faster emission reductions would mean less carbon sink expansion is needed to meet the climate target. In this scenario, sink capacity must grow to around 10 Gt CO₂ by 2050.

Carbon storage technologies

The comparison of CO2 sequestration methods (graphic) shows the advantages and disadvantages of different technologies.

CCS – that is, the storage of concentrated CO₂ in rock formations – offers high stability but consumes a lot of energy and provides no additional benefits.
These additional benefits are present in biogenic alternatives such as biomass and humus (wood use and humus buildup), but the carbon stability in these cases is lower.

The production of biochar, on the other hand, consumes no energy (on the contrary: it generates energy), has very high stability (hundreds of years), and above all brings enormous additional benefits.

Biochar is THE hope carrier in the fight against climate change.

Advantages of biochar as a CO2 storage solution: With our carbonization process, we not only capture CO2 but also generate high-quality and in-demand products, making our customers automatic climate protectors. Biochar as a CO2 storage has several benefits. Energy is produced during production and immediately utilized. Biochar provides excellent soil fertility as well as high stability.