The residents of Maracaçumé, an impoverished town on the edge of the Amazon rainforest, are mystified by the company that recently bought the biggest ranch in the region. How can it possibly make money by planting trees, which executives say they’ll never cut down, on pastureland where cattle have been grazing for decades?
“We are killing pasture that a lot of farmers need,” said Josias Araújo, a former cowboy who now works in reforestation, as he stood on a patch of soil he was helping to fertilize. “It’s all strange.”
The new company, which is also Mr. Araújo’s new employer, is a forest restoration business called Re.green. Its aim, along with a handful of other companies, is to create a whole new industry that can make standing trees, which store planet-warming carbon, more lucrative than the world’s biggest driver of deforestation: cattle ranching.
It’s the holy grail of the forest economy. And now, it might be within reach.
The stakes are high. About a fifth of the great rainforest is already gone. And scientist warn that rising global temperatures could push the entire ecosystem, a trove of biodiversity and a crucial regulator of the world’s climate, to collapse in the coming decades unless deforestation is halted and an area the size of Germany is restored.
Re.green plans to restore native trees in deforested areas and sell credits that correspond to the carbon they lock away. Those trees will be protected, not logged. Then, businesses will use those credits to offset their own greenhouse gases in emissions accounting.
The bet hinges on the success of a system that’s being built from scratch and comes with some big challenges. Measuring the carbon held in trees and soil is complex. And, many conservationists worry that carbon credits could easily be abused by companies that want to appear environmentally conscious while sticking with fossil fuels.
Still, reforestation projects have created a buzz in the northern Amazon, where companies are rushing to buy up big plots of land with restoration potential.
“You know that people who handle cattle don’t care much about this reforestation stuff,” said Anderson Pina Farias, a rancher whose farm is almost completely deforested. But, he added, “if selling carbon is better than ranching, we can change businesses.”
Challenging an Empire
A backlash from nature seems to be helping the restoration companies win hearts and minds in a region where ranching culture runs deep.
Jose Villeigagnon Rabelo, the mayor of Mãe do Rio, a city in the northeastern part of the Amazon, is worried. A brutal drought fueled by climate change and deforestation has recently dried out much of the grass that ranchers there use as feed. And, after decades of pounding by hooves, millions of acres across the region have become so degraded they can’t nourish much of anything.
“The cattle are starving,” Mr. Rabelo said sitting in his office, with wooden paneling and benches made of angelim-vermelho, a tree that’s become hard to find in the region. “We’ve never had a summer like this.”
The crisis has prompted ranchers to dedicate bigger and bigger parts of their farms to feed ever-shrinking numbers of cattle. Now, fewer than half of the ranches registered with the city have any cattle on them.
But around a year ago, a restoration company called Mombak started a 7,500-acre project on one of the region’s biggest ranches. Mr. Rabelo says he is hopeful the new industry will offer the community a lifeline.
The idea is simple: A credit for each ton of carbon that the trees pull out of the atmosphere can be sold to companies that want to compensate for their own pollution.
Environmental disruptions, combined with growing interest in carbon credits, have created an opening to challenge the beef empire’s hold on vast stretches of the rainforest, experts say. According to a 2023 report by BloombergNEF, carbon markets could be valued at $1 trillion by 2037, double what the global beef market is worth now.
Growing a large, biodiverse forest on degraded land can cost tens of millions of dollars. For years, forestry projects had to rely on multiple revenue streams, including sustainable timber harvesting, to restore soil and grow different types of natives trees.
But companies looking to burnish their climate credentials are increasingly willing to spend more to fund projects they deem to be high quality. It’s why companies like Mombak and Re.green are now developing a business model that relies almost solely on carbon credits, with little or no logging.
Microsoft has bought a major project from Mombak, and Re.green says it expects to announce buyers soon. The two companies have raised some $200 million from investors — including large pension funds, the Brazilian Development Bank and global asset managers — to reforest hundreds of thousands of acres by the end of the decade.
“Scaling all of the other carbon removal sectors, it’s just going to move too slow,” said Brian Marrs, Microsoft’s senior director of energy and carbon. “I don’t think there’s a solution to carbon removal without global forestry included.”
Part of the strategy of companies like Mombak and Re.green is to help farmers improve land and intensify cattle ranching in some degraded areas while restoring forests on others. On average, Amazon ranches support one animal on every two acres. That could rise to three animals with little investment, researchers say.
Most projects employ a few dozen local people to plant trees, fertilize the soil and stand lookout for fires. The companies are also funding and training local businesses to provide much-needed native seeds and seedlings.
In some projects, as the forests grow local communities can also make a living from collecting and processing Brazil nuts, andiroba oil and other forest products they can sell to food, beauty and pharmaceutical companies.
When a standing forest becomes an answer to people’s range of needs, that becomes a powerful reason for communities to protect it, said Luiza Maia de Castro, an economist who is managing community relations for Re.green. Right now, razing trees is a perfectly acceptable livelihood in most of the Amazon.
“To break that cycle,” she said, “you have to change how people make a living.”
‘Real Questions’ About a New Model
The efforts still face big challenges. The supply of seeds for native trees is a bottleneck, and finding farms to buy in regions where land tenure is chaotic can take months of research.
Perhaps more important, the trajectory of carbon credit prices depends on whether the world can agree on what a high-quality credit looks like. The carbon markets have been repeatedly rattled by academic and media investigations that revealed dozens of projects had overstated their emissions impact, for instance, by “protecting” forests that were never in danger of being cut down.
But reforestation projects store carbon by growing trees on degraded land, a more straightforward system.
Some experts caution that displaced cattle could simply continue to drive deforestation elsewhere and that wildfires could erase the benefits of trees that took decades to grow.
“It sounds like carbon finance can make a difference,” said Barbara Haya, the director of the Berkeley Carbon Trading Project, which has investigated a number of carbon forestry projects. But she said there were also real questions about accounting methods.
On top of that, she added, “it’s problematic to trade forest carbon for fossil fuel emissions.” That’s partly because buying carbon credits might prove less costly than transitioning a business away from dirty sources of energy, the thing that scientists say the world must ultimately do to avoid the worst effects of climate change.
The companies say they have addressed concerns by setting up firefighting teams, making sure their projects don’t affect cattle supply and adopting a methodology that allows for changing circumstances like new government land policies.
And, remaking a forest isn’t only about the carbon math. It takes a lot more than planting trees. To get it right, scientists working in restoration have to study how each plant fits into a complex ecosystem.
Walking in the forest that remains in Re.green’s farm in Maracaçumé, Ricardo Rodrigues, a professor at the University of São Paulo and a co-founder of Re.green, didn’t stop by the samaúma tree, an Amazonian giant that can live hundreds of years and grow over 200 feet tall, or by the peroba, which is prized in the timber industry.
Instead, he grabbed a vine called a monkey ladder, which was about 10 feet long and perhaps a foot in diameter, that was hanging from a branch.
“For it to grow to this size, it takes decades,” he said. But the forest needs it, he added, because it holds a lot of water, producing flowers and fruit during drier seasons. “It maintains pollinators when trees can’t.”
Creating the conditions for vines, bromeliads and orchids to grow is a part the challenge, too, Mr. Rodrigues said. It’s how you make sure the forest will remain a forest after humans stop helping it along.
Right now, the idea is to get both humans and nature to work together. Techniques vary, depending on how far each parcel of land is from the existing forests. The nearest new plots benefit from the forest’s regenerative powers.
In Mãe do Rio, reforestation workers have been planting 1,000 seedlings a day, working alongside tractors that make trenches on the soil. Drones are documenting their progress.
Six months after the first round of planting, the team was ready to measure the 44 trees in one sample plot. Luiz Carlos Batista Lobato, a botanist who specializes in tree censuses, walked across the plot to document three trees that had died, many that were taller than him and one that was more than two inches thick.
In a few years, Mr. Batista Lobato said, monkeys and armadillos would come to eat the fruits of different trees and birds would feast on the açaí berries, dispersing their seeds as they move around the forest.
“That’s the cycle,” he said.
Watching the trees start to grow helped to dispel some of the skepticism that farmers across the region still have. Back in Maracaçumé, Djalma Soares, a rancher who works on land next to the Re.green project, said that, though he still loves his cattle, he can’t deny that the idea of bringing the forest back to life is “beautiful.”
Mr. Soares said he never had the privilege of studying all the other things he could do with his farm beyond raising cattle. But, still, he feels the unrelenting heat. Seeing his neighbors work to address that, he said, is inspiring.
“We end up feeling like following the same path,” he added, as he watched the sun set on a vast pasture. “We see that it’s the future.”
Source link: https://www.nytimes.com/2024/05/02/climate/amazon-reforestation.html