2025 C.E.

Flower floating on the water with lilies

New Delhi transforms degraded lands into biodiversity parks

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New Delhi, India’s capital city, struggles with numerous environmental challenges, including extremely poor air quality and heat waves. In response, since 2004, the city has created seven large “biodiversity parks” on previously degraded land. The Aravalli Biodiversity Park, a 692-acre park located near an upscale neighborhood, is now a thriving forest of native plants. The Neela Hauz Biodiversity Park is home to a lake that was once a dumping ground for untreated sewage. All seven parks were restored by the Delhi Development Authority and the University of Delhi and together span 2,026 acres.

Satellite from above with Earth below|nasa unsplash

First Earth Fire Alliance satellite for detecting wildfires is now in orbit

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The FireSat constellation, which will consist of more than 50 satellites when it goes live, is the first of its kind that’s built to detect and track fires. It’s an initiative launched by nonprofit Earth Fire Alliance, which includes Google and Muon Space as partners, among others. According to Google, current satellite systems rely on low-resolution imagery and cover a particular area only once every 12 hours to spot large wildfires spanning a couple of acres. FireSat will be able to detect wildfires as small as the size of a classroom and deliver high-resolution visual updates every 20 minutes.

A household heat pump

California to install 6 million heat pumps by 2030

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In 2022, California Gov. Gavin Newsom set a goal for the world’s fifth-largest economy to deploy 6 million heat pump units by 2030. Last week, the California Heat Pump Partnership announced the nation’s first statewide blueprint to achieve the state’s ambitious goals for deploying heat pumps, a critical tech for decarbonizing buildings and improving public health. Looking beyond the 2030 target, the Golden State ultimately needs to deploy an estimated 23 million heat pumps to decarbonize its residential and commercial sectors by 2045.

Battery illustration

Chinese researchers develop new battery recycling process that recovers 99.99% of lithium

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The groundbreaking method, developed by researchers from Central South University, Guizhou Normal University, and the National Engineering Research Center of Advanced Energy Storage Materials, employs a unique ‘battery effect’ mechanism. The process achieves remarkable recovery rates: 99.99% of lithium, 96.8% of nickel, 92.35% of cobalt, and 90.59% of manganese, all within just 15 minutes. Unlike traditional methods, this approach avoids harsh chemicals and minimizes environmental harm, generating effluents suitable for use as fertilizer.

Reef shark

Endangered Caribbean reef sharks rebound in Belize

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Endangered Caribbean reef sharks and other shark species are making a striking recovery in Belize after plummeting due to overfishing between 2009 and 2019, according to recent observations. Experts say the establishment of no-shark-fishing zones around Belize’s three atolls in 2021 is what enabled the population boom. These shark-safe havens were made possible by remarkable cooperation and synergy among shark fishers, marine scientists, and management authorities.

Big Ben

U.K. emissions fall to lowest level since 1872

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In a major win for climate action, a new analysis from Carbon Brief has found that the country’s planet-warming emissions fell by 3.6% to 371 million tons of carbon dioxide equivalent in 2024, the lowest since Queen Victoria’s reign. Last year’s decrease was largely driven by a drop in coal use, led by the closure of the UK’s last coal-fired power station and one of its last blast furnaces. Other contributors included a drop in demand for oil and gas and a nearly 40% rise in electric vehicles on the road.

Amazon

Brazil’s crackdown on illegal mining in Munduruku Indigenous land sees success

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Since November 2024, government agents have carried out 523 actions, destroying 90 camps, 15 vessels, 27 heavy machinery, and 224 engines. The coordinated government effort caused losses of $1.9 million USD to criminals. The 5.9-million-acre Munduruku Indigenous Territory, home to 6,500 people, is one of the lands that has been hardest hit by illegal mining in the country. During Bolsonaro’s administration, there was a 363% increase in the area degraded by mining which brought diseases, mercury contamination, attacks, and deaths to communities.

Minneapolis at night

Minneapolis to become first city in North America to own and operate biochar facility

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Biochar is a specialized charcoal created by heating wood waste to 700 degrees in a low-oxygen environment. The Minneapolis biochar facility will have the capacity to annually: process over 3,000 tons of wood waste, produce over 500 tons of biochar, and remove nearly 3,700 tons of carbon dioxide (the equivalent of taking over 789 cars off the road). Construction is expected to begin this spring with biochar production beginning in the summer or early fall.

Good news for public health

Annual jab for HIV protection passes trial hurdle

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An annual injection designed by California’s Gilead Sciences to guard against HIV has completed an important early safety trial, researchers report in The Lancet medical journal. Lenacapavir stops the virus from replicating inside cells. For the trial, 40 people without HIV were injected into the muscle with lenacapavir, with no major side effects or safety concerns. And after 56 weeks, the medicine was still detectable in their bodies. If future trials go well, it could become the longest-acting form of HIV prevention available.

Monarch butterfly

Eastern monarch butterfly population nearly doubles in 2025

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The population of eastern monarch butterflies – which migrate from Canada and the US to Mexico during the winter – has nearly doubled over the last year, according to a recent report commissioned in Mexico, generating optimism among nature preservationists. The growth in numbers for the orange-and-black butterflies follows years of ongoing conservation efforts – and perhaps provides a sliver of optimism after otherwise discouraging long-term trends for the species.

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