Colombia Bans New Mining on 42% of Its Amazon Rainforest

Three days before leaving office, Colombian President Gustavo Petro signed a resolution that changed the future of nearly half his country's Amazon. On August 4, 2026, he placed 186,500 square miles off limits to any new mining or oil extraction.

The decision used a 50-year-old legal tool that had never been applied at this scale. Article 47 of Colombia's Natural Resources Code allows the government to exclude entire regions from private exploitation rights, and Petro invoked it to cover the whole Colombian Amazon at once.

The resolution doesn't create a national park or stop existing operations. Instead, it permanently blocks three things: new mining concessions, new oil and gas contracts, and the environmental permits that would make either possible.

The timing matters because Petro's successor campaigned on reviving oil exploration and legalizing fracking. President Abelardo de la Espriella took office four days after the resolution was signed, inheriting a decision he never supported.

Colombia's Ministry of Environment pointed to urgent numbers. Between 2016 and 2023, the Colombian Amazon lost 1.95 million acres of forest, accounting for 60% of all deforestation in the country. Another 645,000 acres disappeared between 2022 and 2024 alone.

Roads built for extraction projects create what scientists call a fishbone effect. Side roads branch off, opening territory to illegal logging and settlement far beyond the original permitted area. The road becomes an entry point for destruction that spreads for miles.

The Ripple Effect

The protected area includes 66.2 million acres of indigenous reserves, which cover 55% of the total. Indigenous territories retain 99.5% of their forest cover and hold roughly 78% of all carbon stored in the region.

The Amazon's 400 billion trees release about 20 billion tons of water vapor into the atmosphere daily. Researchers call these invisible currents flying rivers, and they supply moisture that feeds rainfall across Colombia and neighboring countries.

Around 670 million people across Latin America depend on those flying rivers for water. The forests also store an estimated 6.5 gigatons of carbon and help prevent the Amazon from reaching a tipping point where it could shift from rainforest to savanna.

Colombia's Supreme Court recognized the Colombian Amazon as a subject of rights in 2018, giving the forest legal standing to be protected. The Constitutional Court reinforced that precedent in 2025 by designating it a specially protected ecosystem.

The new government hasn't commented on the Amazon reserve yet, but the resolution is vulnerable because it's administrative rather than legislative. What happens next depends entirely on leaders who didn't sign the measure but now hold the power to keep or reverse it.

For now, Colombia leads the eight Amazon nations in protecting its share of the forest from extraction, and the door to new destruction stays closed.