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Watch Brazil's eco-police fight to save the Amazon
03:25 - Source: CNN

Editor’s Note: CNN correspondent Shasta Darlington got exclusive access to a Brazilian police raid on an illegal gold mining operation in the Amazon, and filed this report. For more on CNN’s 2 degrees climate change series, go to and subscribe to the “2 degrees” newsletter.

Story highlights

CNN's Shasta Darlington joined a nighttime raid with IBAMA, Brazil's environmental police

IBAMA agents were tracking illegal gold mines carved into hidden corners of the Amazon

IBAMA says these small operations tear down trees and contaminate rivers with mercury

Novo Progresso, Brazil CNN  — 

Flying low over the dense Amazon rain forest, our target comes into view: an illegal gold mine cut into the heart of the jungle.

A helicopter lands and police from Brazil’s IBAMA environmental protection agency jump to the ground, weapons drawn.

Within 15 minutes they round up six miners and seize rifles, machetes and chain saws inside the camp in the middle of protected land in Brazil’s northern Para state.

Agents with IBAMA, Brazil's environmental protection agency, raid a suspected illegal gold mine.

“This is a .38. Out here it’s used in armed confrontation,” says Jaime Pereira Costa, a hardened veteran who has been with IBAMA’s special forces for 35 years. “That’s what they used to shoot at our helicopter earlier this year.”

IBAMA says the small illegal gold mines carved into hidden corners of the Amazon are a big business, tearing down trees and contaminating rivers with mercury.

According to the British journal Environmental Research Letters, a global gold rush has led to a significant increase in deforestation throughout South America, destroying 1,680 square kilometers (about 649 square miles) of tropical forest between 2001 and 2013.

Using satellite imagery, IBAMA has swooped down on the mine a couple of months after excavation started. Six miners sit barefoot on logs while agents confiscate small nuggets of gold and ledgers full of annotations.

IBAMA agents set fire to a suspected illegal mining camp in Brazil's northern Para state.

The man in charge of the mine, Jose Nilton Azevedo, offers to show the precarious tent he shares with the workers.

“I know we’re destroying the trees,” he said. “But unfortunately it’s the only way for those of us who live here and don’t have jobs or studies.”

Pointing to pots of rice on a makeshift stove and hammocks strung from posts, he asked, “Do you think we would live like this if we didn’t have to?”

And yet the Lonking excavator dredging holes for his mine is worth more than $100,000.

“We’re fighting a war, a war to protect the environment in Brazil,” IBAMA agent Otavio Cesar Ramos said. “They have radios and weapons and expensive equipment, and they know what they’re doing.”

IBAMA, on the other hand, has under 2,000 agents tasked with monitoring the entire Brazilian Amazon, estimated at about 3.3 million square kilometers (1.3 million square miles). Brazil is home to 60% of the Amazon rain forest.

On this raid, they arrest the leader of the mine and set the other workers free. The workers climb into a motorized canoe and head downriver.

But they destroy the camp, burning the excavator, generators and pumps as well as the tent.

“We need to make sure nobody is tempted to come back and start it up again,” Ramos said.

No more than 2 degrees

Amazon rainforest map

Burning rain forests and deforestation account for anywhere from 5% to 20% of global greenhouse gas emissions per year, according to calculations made by climate scientists. And the Amazon basin – which is more than twice the size of India at 6.7 million square kilometers (2.6 million square miles) – contains by far the largest remaining rain forest in the world.

Conserving the Amazon, therefore, must be a central part of efforts to limit global warming going into the U.N. climate summit in Paris in December.

Richer countries to help poorer ones in climate change agreement

With some 80 world leaders on hand, the aim is to come up with a single agreement on tackling climate change, with the goal of capping warming at 2 degrees Celsius (3.6 Fahrenheit) over pre-Industrial Revolution levels.

CNN’s 2 Degrees coverage

There has been much good news out of Brazil. Here, deforestation has declined significantly since 2004, thanks to the creation of national parks and enforcement of laws.

By 2012, Brazil lost 460,000 hectares (1.14 million acres) of forest, while Indonesia lost about 840,000 hectares (2.08 million acres) despite its forest being roughly a quarter of the size of the Amazon, according to the journal Nature Climate Change.

Brazilian President Dilma Rousseff has pledged to achieve zero illegal deforestation in the Amazon by 2030.

The problem is illegal activity has not been brought under control, and the Brazilian government has extended amnesties to ranchers and farmers in recent years, which critics say have prompted a spike in deforestation in 2014 and 2015.

According to satellite imagery analyzed by the watchdog group IMAZON, Amazon deforestation in 2014 and into the beginning of 2015 had more than doubled compared with the same time period a year earlier.

The ‘Blonde Devil’

IBAMA has set up its regional headquarters in Novo Progresso, or New Progress – a city founded less than 24 years ago as loggers, ranchers and large-scale farmers pushed into the Amazon rain fore