For decades, Reforest The Tropics has been measuring the productivity of its forest plantations. In June 2017, for the first time, RTT contracted with an accredited third party, EARTH University, to verify its carbon claims under the protocols established by the International Organization of Standards. The results are fantastic news for RTT and anyone with an interest in global sustainability. Verified forests are averaging 23.66 metric tons (MT) of CO2e capture per hectare, per year! To help put this into perspective, most literature on tropical reforestation demonstrates carbon capture of 10-15 MT of CO2e capture under favorable conditions. In other words, RTT is essentially doubling the carbon capacity of current, successful reforestation projects.
One of RTT’s longstanding research goals was to design a mixed-species forest that can capture and store an average of at least 20 MT of CO2e per hectare, per year. Internally, we recognized this target was ambitious, however we have maintained the belief that lofty goals are fundamental to fulfillment of our mission of ‘making a tangible contribution to global sustainability.’ Not only have we met this objective, but we are exceeding it.
The amazing carbon capture of RTT forests is only part of the story however. Two additional pieces distinguish the RTT approach:
- RTT’s mixed-species forests are more beneficial to the
biome than ubiquitous single species monocultures, and
- RTT forests are designed to generate perpetual income,
which allows partnering landowners to participate in the
project over the long-term.
Essentially, RTT is planting some of the worlds most productive forests…is doing so in more environmentally beneficial manner than typical reforestation models…and is working to ensure they will remain standing indefinitely. Impressive Carbon Capture Verified RTT has focused on forestry research for many years.
Dozens of different planting matrices and mixtures of species have been investigated in order to discover the optimal design to achieve RTT’s three research goals:
- Sequester 500 MT CO2e over the initial 25-year
- Generate $500 income for the landowner per hectare
per year, and
- Create a ‘permanent’ (read 100+ year) farm forest.
The verification process certified carbon from 8 different designs. The most productive forest was able to capture a phenomenal 34.21 MT CO2e per hectare per year for the Mohegan Sun Casino. Conversely, the least productive design achieved a respectable 11.9 MT CO2e per hectare per year. This design is noteworthy, however because one of the species in this mixture succumbed to a disease and had to be removed. Despite the elimination of hundreds of trees, the 5-year old forest is still productive and will only improve in terms of carbon capture as it matures. This example highlights the importance of RTT’s mixed species orthodoxy and offers a fair warning to advocates of a monoculture approach. Furthermore, if we remove this outlier from our analysis, verification results show that RTT forests are actually storing 25.38 MT CO2e per hectare per year.
The Big Picture: If RTT can plant a forest that doubles or triples CO2 capture of the most common reforestation models per hectare, we only need half the land (or less) to extract a corresponding amount of CO2. We at RTT have long known this is possible and now we have official verification of the RTT model’s potential. We thank you for your support as we spread the word.
Reforest The Tropics
This is the 2.5 acre, 5 ½-year old forest established by Reforest The Tropics for the CO2-emissions account of the Westerly, RI Middle School. In a 25-year contract between RTT and the farmer, this forest is legally dedicated to sequestering and storing CO2 for this school’s account. So far, it has captured 42 metric tonnes of CO2 equivalent at 5 years of age when last measured. That’s 92,500 lbs of CO2, the equivalent of 4,625 gallons of diesel used in their school buses offset in this forest.
The scientific world was shaken recently with a report published in Nature, lead-authored by Joeri Rogelj of the International Institute for Applied Systems Analysis, which suggested that that we have already crossed an important global sustainability threshold. The report argues that, “the window for limiting warming to below 1.5 degrees Celsius with high probability and without temporarily exceeding that level already seems to have closed.” Under conventional thinking, it is undoubtedly closed, however we can still achieve our sustainability goals through negative-emissions technologies. The report makes the case, as have others, that emissions reduction strategies alone are ineffective. In other words, if we don’t start aggressively removing carbon dioxide from the atmosphere, we are in deep trouble.
Readers of this newsletter, and followers of Reforest The Tropics in general are already well aware of this reality. We have been showing the math for years. There is simply too much CO2 already present in the atmosphere. We have reminded supporters that the residency rate of atmospheric CO2 is hundreds of years and we have drawn the inescapable conclusion that if we do not pull it out of the atmosphere in large quantities, then all our emissions reductions efforts are futile. We have shared the knowledge that even if we were to reduce our emissions to zero, today, the planet would still experience significant climate change due to the longevity of existing, excessive CO2. Of course, the only reliable, efficient, and safe means of accomplishing large-scale carbon extraction is through massive reforestation efforts in tropical zones. Our friends at the Woods Hole Research Center have consistently reinforced this message. In their latest newsletter, President and Executive Director, Dr. Philip Duffy argues that “it’s too late to control climate change solely by reducing future emissions of greenhouse gases—there’s too much CO2 in the atmosphere already for that to be sufficient.” Dr. Duffy continues that the “time-honored process of photosynthesis” is key to removing excessive atmospheric CO2.
Given this knowledge, it may seem strange that more focus is not given to the tropical reforestation solution. Skeptics of the reforestation approach tend to point to two challenges. First, it is argued that large-scale reforestation may adversely affect our ability to feed the planet, as agricultural land is transitioned to forest. Under conventional reforestation models, this argument has some small validity. The RTT model, however captures and stores CO2 much more efficiently than traditional models. Not only is our rate of capture 3-5 times greater than common models found throughout the literature, but our ceiling is much higher as well. Most forests (including old growth primary rainforests) tend to max out at 250-400 metric tons CO2 per hectare (with limited exceptions). RTT forests reach 500 metric tons within 25 years and some of our older research plots have reached over 2000 metric tons in a single hectare! The implications are clear. We need much less land dedicated to carbon sequestration if we are using the RTT model. Also, skeptics contend that forests are risky due to land-use changes. Again, this is a valid criticism if we look at typical reforestation efforts. The RTT model distinguishes itself in its ability to provide competitive income for a farmer. Our goal is to create a forest that can compete with cattle farming as a viable land-use option. Data from RTT forests shows that a farmer can earn a decent living through forestry and has no economic reason to ever cut the forest down. This income can last for generations, as RTT forests are designed to be productive indefinitely
It is time that the promise of the RTT model be shared with the world. We need your help. Please join us in our efforts to nudge business leaders and policymakers from their slumber in respect to the potential of tropical reforestation in general and the immense power of the RTT model specifically.
RTT recently launched an exciting new module to its educational program. In photos taken in both Costa Rica and Rhode Island, Greg Powell, the RTT Director, is giving a presentation about RTT forests to students at the Westerly Middle School. Greg, and RTT Forestry Engineer, Victor Martinez were able to make the presentation from Costa Rica using video-conferencing equipment funded by The Rotary Club of Westerly. Students were able to ask RTT staff questions about their forest in real time and learn about the importance of reforestation as well as specific elements of RTT’s reforestation approach. This level of connectivity between a school and their efforts towards sustainability is truly unique. RTT believes this type of engagement will foster a deeper understanding of the issues surrounding global sustainability for students throughout the region, moving forward.