South America

This archive covers progress stories and milestones from across South America, spanning countries from Brazil and Colombia to Argentina and Peru. Expect reporting on conservation wins, public health advances, economic shifts, and community-led efforts shaping life across the continent.

Colombia hillside, for article on cattle traceability law, for article on cattle traceability law, for article on cattle traceability law

Colombia passes landmark law to track millions of cattle and fight deforestation

Colombia’s new cattle traceability law is a landmark shift in how one of the Amazon’s most deforestation-prone industries will be held accountable. For the first time, slaughterhouses, traders, and exporters must prove their beef isn’t linked to illegal deforestation — covering more than 29.7 million cattle across the country. The law also aligns Colombia’s beef sector with the EU’s incoming deforestation regulations, adding real trade incentives to the environmental ones. Conservation groups see it as a model for the region, proof that persistent advocacy can turn a long-documented problem into binding law.

Someone holding a Chilean flag, for article on leprosy elimination

Chile becomes the first country in the Americas to eliminate leprosy, WHO verifies

After more than three decades without a locally acquired case, Chile has become just the second country in the world — after Jordan — to be officially verified by the World Health Organization as having eliminated leprosy.
The verification, announced jointly by WHO and the Pan American Health Organization, marks the end of a long arc. Chile’s last locally acquired case was reported in 1993, originating on Rapa Nui (Easter Island), where the disease first arrived in the late 19th century. The win came from decades of patient work: ongoing surveillance, free multidrug treatment provided through PAHO since 1995, trained clinicians, and care that prioritized dignity alongside diagnosis.
Globally, leprosy still affects more than 200,000 people a year, mostly in tropical regions, and WHO has urged Chile to keep its surveillance sharp in case the disease ever returns. But for now, an ancient illness has been pushed to the margins of one country’s medical history — and a model has been built for others to follow.

Mother and baby, for article on Chile maternity leave reform

Chile’s maternity leave reform lifted mothers’ employment without wage penalties

Chile’s maternity leave reform delivered something policymakers rarely get to claim: a sustained employment boost for mothers, with no wage penalty in sight.
After the country doubled postnatal leave from 12 to 24 weeks in 2011, eligible mothers were 6.8 percentage points more likely to hold formal jobs in the three years after returning to work, according to a study in the Journal of Development Economics. The biggest gains went to women with shorter work histories — exactly the mothers the reform was meant to reach.
It’s a hopeful signal for countries everywhere weighing family policy: designed with real conditions in mind, parental leave can lift women up rather than hold them back.

Brazil forests and mountains, for article on Atlantic Forest deforestation

Atlantic Forest deforestation in Brazil drops to lowest level since 1985

Deforestation in Brazil’s Atlantic Forest dropped to just 8,658 hectares in 2025 — the lowest level since satellite monitoring began four decades ago, and the first time annual losses have fallen below 10,000 hectares. That’s a 40% drop from the year before, and a world away from the Bolsonaro years, when more than 20,000 hectares were cleared annually. Conservationists credit a steady mix of enforcement, civil society pressure, and renewed federal commitment under Lula, and they believe zero deforestation could be within reach in just three years. In a biome where 80% of Brazilians live and every fragment matters for biodiversity, this milestone is a quiet but powerful reminder: forest loss isn’t inevitable, and a different path is genuinely possible.

Supplement capsule, for article on vitamin D breast cancer study

Brazilian scientists find that vitamin D boosts breast cancer treatment success by 79%

Vitamin D may give breast cancer chemotherapy a meaningful boost, according to a new randomized trial in Brazil. Among 80 women undergoing chemo before surgery, those taking 2,000 IU of vitamin D daily saw their tumors completely disappear 43% of the time, compared with 24% in the placebo group. Researchers think the nutrient may act as a chemosensitizer, helping cancer cells respond more fully to treatment. The authors are careful to note that a trial this small isn’t the final word, and larger studies are needed before guidelines change. Still, the idea that something as simple, safe, and affordable as vitamin D could improve outcomes for the world’s most commonly diagnosed cancer is genuinely hopeful news worth watching.

Paraguay flag, for article on Paraguay poverty reduction

Paraguay cut its poverty rate from 50% to under 18% in two decades

Paraguay’s poverty rate fell from nearly 50% in 2003 to 17.6% in 2023 — one of Latin America’s steepest sustained declines, lifting millions of families into security their parents never knew. The landlocked country of 6.8 million pulled this off without oil wealth or coastline, leaning instead on two decades of political stability, a diversifying economy, and clean hydroelectric power from the Itaipú Dam. Services and manufacturing have grown alongside agriculture, and 46% of Paraguayans are under 25, entering an economy that has been steadily expanding their whole lives. The road ahead runs through climate risk, but a country that halved poverty in a generation has shown it can do hard things — a quiet lesson for development everywhere.

Parrot in Colombia, for article on Colombia marine protection

Colombia has now protected 47% of marine areas and 26% of land and inland waters

Colombia has already protected 47.4% of its marine and coastal areas, blowing past the global 30×30 goal that 196 nations pledged in 2022. On land, it has reached 26.3% and is aiming for 34% by 2030, with much of that progress shared with Indigenous communities, Afro-descendant territories, and private landowners. The country’s approach blends a Switzerland-sized ocean sanctuary off the Pacific coast with more than 1,400 small civil society reserves, including a recovering cloud forest where mountain springs have returned and neighbors are planting native corridors. As the world falls behind on biodiversity targets, Colombia offers something rare: a working, inclusive model that other countries can actually learn from.

Sunset by smokestacks, for article on fossil fuel phaseout

More than 50 nations attend world-first conference on phasing out fossil fuels

Fossil fuel phaseout talks just crossed a real threshold: for the first time, more than 50 nations sat down together specifically to plan a way off coal, oil, and gas. The two-day gathering in Santa Marta, Colombia, brought together an unusually wide mix — major producers like Australia, Norway, and Canada alongside Pacific island nations like Tuvalu and Vanuatu, with Europe and emerging economies in between. No binding deals were expected, but the recommendations will feed into a voluntary roadmap being shaped under Brazil’s COP30 leadership. It’s a small, hopeful shift: producers and consumers finally talking openly about a transition that, until recently, was almost taboo to name out loud.

People holding breast cancer pin, for article on vitamin D breast cancer

Brazilian researchers find vitamin D boosts breast cancer chemo by 79%

Vitamin D may give breast cancer chemotherapy a meaningful boost, according to a new Brazilian trial in which 43% of women taking a daily supplement saw their tumors disappear completely, compared to 24% on a placebo. Researchers at São Paulo State University gave 80 patients a modest 2,000 IU dose alongside their standard pre-surgery chemo — a level safe enough for everyday use and cheap enough for almost anyone. Most women in the study were vitamin D-deficient to begin with, a pattern common in cancer patients worldwide. If larger trials confirm the finding, it points to something rare and hopeful in oncology: a low-cost, low-risk addition that could improve outcomes most for the communities currently facing the steepest deficiency rates and the hardest cancer journeys.

A snowy owl in flight over a winter landscape for an article about migratory species protection

132 nations extend UN protection to 40 migratory species at historic Brazil summit

Migratory species protection expanded significantly at CMS COP15, where 132 nations meeting in Campo Grande, Brazil voted to extend international legal safeguards to 40 new species, including the snowy owl, giant otter, striped hyena, and great hammerhead shark. The decision pushes the U.N. Convention on the Conservation of Migratory Species total past 1,200 protected species for the first time. The achievement carries urgent weight: a new U.N. report found 49% of species already covered by the treaty are still declining. Conservation priorities set at the summit will shape international wildlife policy through at least the next CMS conference in 2029.