New satellite data reveals a considerable reduction in the loss of tropical rainforests globally, with a notable decline in deforestation rates attributed to enhanced conservation efforts in Brazil and other countries. However, scientists warn that the looming threat of the El Niño weather pattern could jeopardise this progress, potentially exacerbating forest fires and reversing hard-won gains.
A Promising Decline in Deforestation
In 2025, approximately 43,000 square kilometres (around 17,000 square miles) of pristine tropical forests were lost worldwide, a figure that mirrors the size of Denmark. This loss represents a significant 36% decrease compared to the record figures seen in 2024, according to analysis conducted by the World Resources Institute and the University of Maryland. Despite this encouraging trend, experts stress that current deforestation rates remain alarmingly higher than those recorded a decade ago.
The lessened deforestation in 2025 can be partially attributed to a reduction in the unprecedented wildfires that plagued many regions in 2024, a phenomenon linked to the cooler La Niña climate conditions. Enhanced environmental policies and stricter law enforcement in key countries, particularly Brazil, Colombia, and Malaysia, have also played crucial roles in this positive shift.
“It’s incredibly encouraging to see the decline in 2025,” remarked Elizabeth Goldman, co-director of Global Forest Watch at the World Resources Institute. “This underscores how political will and responsible leadership can yield tangible results for our forests.”
Brazil’s Environmental Policies Show Results
Brazil, home to the Amazon rainforest—the largest in the world—has made significant strides in combatting deforestation. Notably, the country recorded an estimated loss of 5,700 square kilometres (2,200 square miles) of old-growth forests last year, marking the lowest figure since monitoring began in 2002. Stronger environmental regulations and effective law enforcement have been pivotal in this success, illustrating the potential for meaningful change when concerted efforts are made.
Tropical rainforests are vital for biodiversity, housing millions of species and sequestering substantial amounts of carbon dioxide, which helps mitigate the impacts of climate change. However, they continue to face relentless pressures from agriculture, logging, and climate-induced challenges that create conditions conducive to larger and more frequent wildfires.
The Threat of El Niño and Climate Change
While progress has been made, the spectre of climate change looms large, especially with the anticipated arrival of the El Niño phenomenon later this year. Experts warn that this weather pattern, combined with ongoing climate change effects, could lead to increased fire risks that threaten the stability of these critical ecosystems.
“Climate change and land clearance have shortened the fuse on global forest fires,” cautioned Professor Matthew Hansen from the University of Maryland. He emphasised the urgent need for improved fire management practices to prevent further degradation of the world’s most important forests.
The Copernicus Climate Service, in a report released this week, highlighted how climate change has intensified heatwaves, droughts, and wildfires across Europe, with approximately 95% of the continent experiencing above-average temperatures last year. This extreme warmth has contributed to widespread wildfires, with over 10,000 square kilometres (4,000 square miles) burned—an area larger than Cyprus.
Moving Forward: The Need for Action
Despite these alarming trends, there is a glimmer of hope. The report acknowledged that nearly half of Europe’s electricity now comes from renewable sources such as wind, solar, and hydropower, reflecting a global shift towards sustainable energy solutions. However, the road ahead remains fraught with challenges as nations strive to meet their commitments to halt and reverse forest loss by 2030—a target that continues to be elusive.
Why it Matters
The health of the world’s forests is not just an environmental concern; it is a matter of global importance that affects biodiversity, climate stability, and human wellbeing. As we witness a slight decline in deforestation rates, it is imperative that nations mobilise resources and political will to safeguard these vital ecosystems. The threat of climate change, compounded by the El Niño phenomenon, underscores the urgency of our actions—without immediate and effective intervention, we risk pushing our most precious forests beyond the point of no return.