A group of U.S. lawmakers is urging Secretary of State Marco Rubio not to support Colombia’s plans to restart aerial spraying of coca crops in the Amazon, warning of risks to human health and the environment. The Colombian government says spraying is needed to combat cocaine production and weaken armed groups, but critics argue the decades-old strategy has failed and could accelerate deforestation. The lawmakers are questioning Washington’s potential involvement and calling for alternatives that protect rural communities and the rainforest. Despite decades of U.S.-backed counternarcotics efforts, Colombia remains the world’s largest cocaine producer.  By Steven Grattan, Associated Press  Banner image: A small coca crop is visible on the outskirts of Puerto Asis, Colombia, Nov. 26, 2025. Image courtesy of Ivan Valencia, Associated Press This article was originally published on Mongabay

The last large tracts of forest in Serra do Pingano, in northern Angola, are disappearing rapidly, leaving the landscape increasingly bare. Over the past two decades, central Serra do Pingano lost 43% of its original forest cover, while the wider Serra do Pingano Forest Ecosystem (SPFE) lost 21%, equivalent to 536 square kilometers (207 square miles) of forest. The findings appeared in Nature Ecology & Evolution earlier this year. Two of the paper’s authors are Angolan. Signed by 11 researchers from multiple institutions, the study serves both as an urgent warning and as a call to action to protect what remains of the vanishing forest. After years of appeals, the Angolan government established the Serra do Pingano Conservation Area in April. Located in Uíge province, the SPFE encompasses several densely forested mountain ranges of high biological value. Pingano forms an ecological transition zone between tropical rainforest and miombo savanna, bringing together elements of western Central African forests and species and evolutionary lineages associated with southern and eastern Africa. It also shelters some of Angola’s last remaining tropical forest south of the Congo River. The Nature Ecology & Evolution study brings together evidence from years of research into the SPFE. One of its co-authors spoke with Mongabay. Thea Lautenschläger, a German ethnobotanist specializing in northern Angola and scientific director of the Botanical Garden of Hamburg, described the threats facing the forest and the species that depend on it. “It is difficult to say to what extent our work directly influenced the…This article was originally published on Mongabay