Green carbon credit
Compensate 1000kg of CO2, and help against ocean acidity
What is a Green Carbon Credit?
A green carbon credit is 1000kg of CO2 cleaned from the atmosphere, by using natural minerals to absorb it. The main advantage is that the CO2 will actually dissolve into a different material and won't flow back into the atmosphere on a later stage (like trees do)
Perhaps the best part is that the newly created substance: calcium carbonate or ordinary chalk, will eventually flow to the ocean. In the ocean it has a positive effect as it is reducing the acidity of the oceans. Eventually it will become limestone, which is the exact same method how our planet has been absorbing CO2 from the air for billions of years.
Conclusively this mineral absorbs CO2 and reduces ocean acidity. A two-edged sword against climate change.
Why not use trees to absorb CO2?
When the tree falls, what happens?
Trees absorb CO2 from the atmosphere, which is good. But what happens after the tree is end of life? The wood is then collected and burned, or it will decay in the forest. Both ways the majority of CO2 will return back to the atmosphere. Perhaps in between furniture or houses are made from the wood, but eventually it will still be burned or decay, sending the CO2 back in the atmosphere, where it came from..
In the graph we see the carbon sequestration (meaning capturing and storing of carbon). Here the CO2 absorbing mineral (olivine) is compared to the lifespan of trees. Every tree will eventually return it's absorbed carbon back to the atmosphere.
Approach on climate change
There are numerous ways how we can reverse climate change. In our opinion they shouldn't compete with each other, instead they should be an addition to each other. As the more things we do to stop or reduce emissions and reverse it the better for the air we all breath.
We have received feedback on oIivine weathering that if we implement this method worldwide that everyone may start to think that it is allowed to burn more emissions in the atmosphere. We don't see this method as the one way to reverse climate change completely. We agree that it will be better that we don't emit any emissions at all. But how realistic is that? We now have almost 8 billion people leaving on earth, it is projected to increase to around 11,5 billion in 1 lifetime from now. How realistic is it that we are able to reduce emissions to 100% or catch every kg of CO2 which leaves our cars, air planes, factories etc?
Looking at the figure below we see our emissions in blue in billions of tons and the purple graph the parts of CO2 in the air we breath. Conclusively we can't only be looking at catching our exhaust fumes or only focus on reducing our waste, we also need to look at cleaning the CO2 from the air, to absorb the existing surplus and store it somewhere safely. We believe CO2 capture and storage by advanced weathering of olivine is the most effective and proven method, primarily becasue it is using the same method as nature has been doing for millions of years. We're simply speeding up the process.
The amount of carbon dioxide in the atmosphere (raspberry line) has increased along with human emissions (blue line) since the start of the Industrial Revolution in 1750. Emissions rose slowly to about 5 billion tons a year in the mid-20th century before skyrocketing to more than 35 billion tons per year by the end of the century. NOAA Climate.gov graph, adapted from original by Dr. Howard Diamond (NOAA ARL). Atmospheric CO2 data from NOAA and ETHZ. CO2 emissions data from Our World in Data and the Global Carbon Project.