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New technology could help COP30 achieve its Amazon rainforest conservation goals

COP30 talks on climate change will focus on protecting forests

Amazon is using technology to protect the environment

A project that uses drones and AI to restore degraded forest

Clar NiChonghaile & Rosalind Thacker

The mangrove trees, which resemble upside-down tree branches and extend into the waters to provide habitat for crabs and fish, are under threat.

Two years ago (coastal erosion destroyed the homes of 15 residents living here on the coast). "It was very strong," Patricia Farias Ribeiro said, a local resident.

Researchers are responding by using sensors that cost little to nothing to measure air temperature, rainfall, and tide levels, to monitor the island and guide conservation efforts, as well as provide useful information to residents, such a optimal time to fish.

Lisangela Cassiano, of the government park service ICMBio, said, "Over time you can identify the changes that are taking place and we will correlate this with the biodiversity data."

Cassiano is responsible for the RESEX SOURE marine reserve, which is one of the three sites that ICMBio, in collaboration with the International Union for Conservation of Nature (Brazil), has chosen to install sensors developed at the Federal University of Para.

According to a study published in Ocean and Coastal Research, the island has lost 150 meters of coast due to erosion during the last 16 years. This is partly caused by the sea level rise as a result of climate change.

The host president, Luiz inacio Lula da Sola, has placed the protection of forests at the forefront of his agenda.

The summit was used by him to launch a multilateral fund, the Tropical Forests forever Facility (TFFF), whose goal is to protect biomes of vital importance like the Amazon rainforest.

Brazil can be proud of its progress. According to a report from the Brazilian space agency Inpe, deforestation fell by 11.08% between July 2025 and the same period last year, reaching the lowest level since 2014.

Re.green, a Brazilian company specializing in ecological restoration that uses AI and technology to restore the Amazonian and Atlantic forest in Brazil, is already using new technologies.

Thiago Piccolo, CEO of Thiago Group, aims to restore forests and generate revenue from carbon credits as well as sustainable timber.

His company won the Earthshot Prize in 2025, an prestigious award for environmental protection created by Prince William of Britain. It received a grant of PS1 million ($1.31million) to further its work.

Re.green was founded in 2021 and has since purchased and leased over 37,000 hectares (over 91,000 acres), which includes pastures for restoration, degraded forest and standing forests. Restoration is underway on 17,000 hectares (42,000acres) of land, and 12,000 hectares (30 acres) have been completed.

Carbon credits are sold to major corporations such as Microsoft and Nestle.

Picolo explained that "we restore areas that have been deforested decades or even centuries ago and the original ecosystem which was there before."

DRONES IN AMAZON

Re.green uses drones to survey difficult-to-access land. It then analyzes the data using AI, and other technologies, to determine which areas will yield the greatest returns in terms of biodiversity and climate, and for local communities.

They have a conversion rate of just 1.5%. This means that they only close on two properties out of 100 they evaluate because of factors such as environmental viability or land prices. The only landowners they buy from are cattle ranchers and they do not use land owned by the community.

Picolo said that technology can help them achieve scale by sorting through large datasets. Drones also boost efficiency by planting seeds or killing exotic grasses which degrade land.

He said, "The holy-grail for us is to be able do this with high efficiency and be able access land that can't be accessed by traditional tractors or agricultural implements."

Picolo stated that re.green projects create jobs for local communities in science and technology and encourage indirect entrepreneurship. This is done by allowing bee-producing companies to use land on which local people can harvest acaiberries and by allowing locals to harvest the berries.

Helping Nature Recover

Picolo said that the model of restoration used depends on local context.

Some areas may require intensive intervention, such as planting more trees in areas that are severely degraded. Other areas will regenerate naturally.

He said that understanding where to apply each model was fundamentally important. "If we don't invest enough and rely on nature to regenerate, you may end up with an inferior type of forest.

We need to apply science and technology to our current practices to figure out how we can make forests grow faster.

Making technology more accessible is one way to achieve this.

Renan Peixoto Rosario is a researcher at the Federal University of Para who worked on the Marajo Island Project. He said that the technology system was created to be inexpensive, easy to maintain, and easily replicated in protected areas.

He said that the system could be five to twenty-five times cheaper than commercially available solutions. This is due to its modular design, open-source hardware and 3D printing.

He said that the goal was to make remote coastal communities able to afford monitoring.

Context Links

https://www.context.news/nature/scientists-in-brazil-starve-trees-of-water-to-test-amazons-limits

https://www.context.news/nature/tipping-point-the-amazon-rainforests-vital-signs

https://www.context.news/nature/q-and-a-bezos-earth-fund-ceo-on-how-ai-could-help-climate-and-nature

(source: Reuters)