RIO DE JANEIRO (AP) — September has come and gone, marking another painful milestone for the world’s largest rainforest. It’s the worst month for fire in the Amazon in over a decade.

Satellite sensors detected over 42,000 fires in 30 days according to Brazil’s national space institute. It is the first time since 2010 that fires in the Amazon surpassed 40,000 in a single month.

This September was two and a half times worse than last. Coming at the peak of the dry season, it’s usually the worst month not only for fire but also for deforestation.

The official data for forest loss only goes through September 23 so far, yet is already 14 per cent more devastating than September 2021. In just those three weeks, the Amazon lost 1,120 square kilometres of rainforest (434 square miles), an area larger than New York City.

The surge in forest fire occurs amid a polarising presidential campaign. Far-right President Jair Bolsonaro is seeking a second four-year term against leftist Luiz Inácio Lula da Silva, who ruled Brazil between 2003 and 2010 and leads in the polls. The first round of the election is on Sunday.

Despite the smoke clogging the air of entire Amazon cities, state elections have largely ignored environmental issues. Besides the President, Brazilians will also elect governors and state and national parliaments.

In Para state, worst for both deforestation and fire, the subject of deforestation was barely touched on during a TV debate among gubernatorial candidates held Tuesday by the Globo network.

Over an hour and a half, only one candidate mentioned the steep increase in deforestation. Globo, Brazil’s leading television network, did not even select it as one of eight debate topics.

Protecting the forest is not a high-priority for the population, after years of pandemic and a deteriorating economy, Paulo Barreto, a researcher with the nonprofit Amazon Institute of People and the Environment, told the Associated Press. “But the fact that journalists don’t ask is an even bigger problem.” Deforestation can lead to more poverty, he said. “On the other hand, there are growing economic opportunities related to conservation.”

Fire in the Amazon is almost always deliberately set, to improve cattle pasture or burn recently-felled trees once they are dry. Often the fires burn out of control and reach pristine forest areas.

Studies have shown that deforestation rates peak in election years, and 2022 has been particularly intense because of Bolsonaro’s anti-environmental rhetoric, according to analysts.

“With a chance of changing the government to one that promises more rigour, it seems that the deforesters are taking advantage of the possibility that the party’s over,” Barreto said.

Since Bolsonaro took office, in 2019, deforestation has been on the rise, as his administration has defanged environmental authorities and backed measures to loosen land protections, emboldening environmental offenders.

The far-right leader has repeatedly denied that fire is even increasing, despite official data from his government agency. On Thursday night, during the final Presidential debate before the vote, he said that forest fires occur periodically in the Amazon, dismissed the criticism as a “war of narratives,” and said Brazil “is an example to the world” on conservation.

It was an answer to Simone Tebet, a senator who is close to agribusiness leaders and considered a moderate in the race. In one of the few moments free of personal insults, she criticised Bolsonaro’s environmental record in a segment related to climate change.

“Your administration is the one that has set biomes, forests and my Pantanal wetlands on fire. Your administration favoured miners and loggers, and protected them,” she said. “You, in this regard, were the worst president in Brazil’s history.”

During his campaign, da Silva promised to restore law enforcement and gained support from Indigenous and environmental leaders, such as former Environment Minister Marina Silva. She had broken publicly with the former president over his push to build hydroelectric dams and other development initiatives in the Amazon.

In announcing her support during a meeting with da Silva a few weeks ago, she called Bolsonaro a threat to Brazil’s democracy. She said the country is facing a critical moment on issues ranging from the environment to the economy.