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Carbon Negative = Planet Positive

Make your business Planet Positive!

Soil regeneration, renewable energy, and carbon capture and storage (CCS), for a climate-resilient and more sustainable world.

Circle Carbon S.L. is a social enterprise dedicated to the development, growth, and sale of products and services that contribute towards the mitigation of climate change and adaptation towards maximum climate resilience.

Fertile soils for healthy and sustainable societies.

Products and services that you can feel good about.


* Carbon Negative: when the sum of all your activities (business, personal etc.) take more carbon (CO2) out of the atmosphere than they put in (at present we are adding between 30Gt and 40Gt CO2 to the atmosphere every year).

Tree Solutions

Trees, often called the lungs of the earth, also provide food and ground cover for soil, the soul of the earth.

Almond blossom

We work with biodiversity, including many species of trees to create a healthy and productive agroforestry system. Historically, producing trees on Mallorca include almond, olive, carob, citrus, and other fruit trees. In addition to these, we work with moringa, pistachio, avocado, and the highly productive and beneficial Pongamia Pinnata.


What is Pongamia Pinnata (a.k.a. Millettia Pinnata, Karanja, Indian Beech)?

Pongamia Pinnata is used in many countries for producing biodiesel, and it’s also a very restorative plant, with a lot of beneficial effects. It is a net Carbon sink, and also a Nitrogen fixer, restores the fertility of exhausted soil, and can be used in areas where salt water from the sea has infiltrated aquifers. Its oil also has medicinal effects, and it’s used in cosmetics and as an ecological pesticide in organic agriculture.

Oil from the beans can be used in biodiesel production, for increased self-reliance and off-grid model of farms, where the farmers could produce their own fuel at a much lower cost. Just as an example: one hectare can produce from 5000 to 10.000 litres biodiesel a year (double in intensive agriculture), enough for a car, a tractor, heating system and electricity of a regular farm.

In this project the trees will be planted on leased land or in partnership agreements with landowners. Leases are being negotiated for a minimum of 30 yrs. with first harvests after 5 yrs. and maturity after 10 yrs.


Seeds were imported to Mallorca and planted three years ago. The seeds have been grown organically in a greenhouse and now there are ca. 5.000 seedlings, between one meter and two meters high, healthy and ready to be planted in the field. The first goal was to prove that the tree could be adapted to the Majorcan climate, and this we now know that it works, as last year (2017) we had the first flowering. Now we have to start the production stage, once they are planted in the ground.

As a reference about 25,000 ha. with almond trees have been lost in the past few years because of the Xylella Fastidiosa bacteria infection, and farmers are very interested in new species. And Pongamia is not just bacteria resistant, but also a source for antibacterial bioherbicides. The local autonomous government (Govern Illes Balears) has set a goal to regenerate 6000 ha. /year with new trees.


Circle Carbon S.L. looks to combine business competence, acumen, and common sense to celebrate the role of humanity as custodians of the earth to resolve the challenge of Climate Change to our civilisation. Our projects aim to contribute first on a local level, and by sharing and collaborative coalitions on an international level towards the mitigation of Climate Change by growing trees and applying biochar to the soil in which trees and other cultivars are planted. The projects create the conditions for effective carbon sequestration, increased plant growth, and development of healthy, wealthy, and self-sufficient communities.

Global benefits:

Regeneration of soils, production of renewable energies, carbon capture & storage (CCS), food safety, energy safety, happy and peaceful communities.

Economic benefits for the company:

Sale of “Circle Carbon” products from organic farming; olives and their derivatives, almonds and their derivatives, carob and its derivatives, sale of substrates for gardening, nurseries, consulting, education, and training services.



Bonn/Fiji COP 23, Revisiting Paris, and the Smoking Gun…

(Originally published on Medium on December 1, 2017: https://medium.com/@LCPSoderberg/bonn-fiji-cop-23-revisiting-paris-and-the-smoking-gun-ec24f1410bf0) Bula! Vinaka! Talanoa! Twelve days of intense presence, meetings, and dialogue, ending for me with a deep sense of awe. My respect restored for the work of the country delegates (Parties) and their teams (working through the night until 7am on the thirteenth day), even more …

Green Holidays? Welcome to a more Sustainable Mallorca!

By Christer Söderberg, Palma May 9th, 2017 (this blog appeared first in the “Mallorca LOOK” July 2017 edition) Vacation time is the opportunity to rest, recharge your batteries, and enjoy some refreshing distractions from the routines of daily life. With this end in mind, Mallorca offers many inspiring ways to enjoy your holidays, and leave …


Christer Söderberg is a social entrepreneur with business experience from six countries on four continents. Christer is the initiator and custodian of this project, having planted his first 6000 trees on an organic coffee farm in Brazil in 2009, and initiated several social-environmental projects in Sweden, Brazil, and now in Spain. Christer brings his experience and passion for the earth and its communities to this project to develop a working model that regenerates the soil and restores the air we breathe on our fragile and most beautiful planet.


Urs Winzenried is Swiss and an experienced entrepreneur and business coach/mentor, currently living in Palma de Mallorca and Florida, USA. During his professional career he has been involved both in commercial enterprises and not-for-profit projects. He believes that we must find ways to bridge the gap between bottom line only thinking and a more circular economy. Urs is our first custodian investor in the project and is contributing his wisdom and experience to help realise the infinite potential available when a few good people come together for the common good in the ritual of life and celebration of community.


Astrid ColomarAstrid Colomar es de madre mallorquina y padre ibicenco, ambos de origen payés. Su bagaje académico ha sido en Historia del arte y Enseñanza, pero su verdadera formación se ha apuntalado entre distintos idiomas, culturas y países. Ha participado en la gestión de la enseñanza a través de la acción sindical, en la gestión de la cultura a través del arte y, actualmente, en la gestión social y medioambiental a través de la regeneración de la tierra y la agricultura ecológica en Circle Carbon S.L.
Nuestra nueva empresa requiere una gestión eficiente, adaptativa, creativa y comprometida social y medioambientalmente. Este será el cometido en la coordinación de proyectos Circle Carbon S.L.


Conectar con la realidad fértil, y encontrar nuestro camino hacia ésta, nos exige la creación de nuevas plataformas y empresas regeneradoras e integradoras. Nuestra vida tiene que llegar a identificarse con nuestro entorno natural y social para que se pueda desarrollar en plena abundancia de forma equilibrada, sana y respetuosa. Este es el mayor beneficio al que podemos aspirar, a un mayor capital de vida y no simplemente económico.

Larga vida para la humanidad en la Tierra!



Would you like to join our team? Contact us!