September's Good News: From China's Desert-Holding Forest to a One-Hour Cancer Swab

A good-news round-up works against our negativity bias — the brain's habit of clinging to bad headlines. The Good News channel's September selection is not a single miracle but a set of measurable small wins across eleven fronts. Background: when the feed is always crisis, progress becomes invisible unless someone curates and verifies it. Think of a weather map: not one sunny spot, but a continental pressure shift. For example, grasping the pattern from northern China to Scotland, rather than a single restoration project, separates grounded optimism from hype.

Holding Wind Back With Straw

China's Great Green Wall (the Three-North Shelter Forest Program — an ecological engineering effort since 1978 to screen northern China from desertification) sounds gigantic, yet its most effective tool is humble: straw checkerboards . Workers press straw into sand in roughly one-metre grids. The mechanism works in three steps: 1) the grid slows wind, 2) it traps moisture and stops sand from blowing, 3) it creates a microclimate where seedlings and shrubs can take root. It is not concrete against wind, but a breathing cage. On windy corridors such as Taipusi in Inner Mongolia, that cage is enough for a seedling to survive its first two critical years.

The scale approaches the size of Germany after fifty years — tens of billions of seedlings and hundreds of millions of grids — and new studies say the effort is finally showing up in data. In the 1980s the Gobi Desert expanded by more than 10,000 square kilometres per year (about double Greater Tokyo swallowed annually), while since 2000 northern China has reclaimed more than 1,000 square kilometres of desertified land each year. Nationwide, desertified land has fallen by roughly 10%, and forest cover in the project region has nearly tripled. That is the difference between expansion and reversal. Independent compilations by Ember and Nature confirm the trend with satellite and field measurements.

The Lesson of a Single-Species Forest

The early decades leaned on single-species blocks; monoculture (one species forest — one disease can wipe a whole strip) proved brittle when drought and pathogens hit, and survival was low. The lesson was practical as well as ecological: without diversity there is no barrier. Over time the strategy shifted to mixtures of native species with different root depths and water needs. Yet the researchers' warning is clear: restored land does not stay healthy on its own; it needs decades of maintenance, monitoring and village participation. Success is measured not by trees planted but by trees alive five years later — as the Lake Victoria projects remind us, where nearly half of seedlings can disappear if counting stops at planting.

The United Nations Sustainable Development Goals (SDGs — 17 targets all members adopted in 2015 to end poverty, improve health and education and protect environment by 2030) got their tenth annual stocktake in the 2025 report, which documents both gains and gaps. Electricity access was around 90% in 2015 and reached 92% in 2023, cutting the number without access to 666 million; internet access rose from about 40% to near 75% and school completion from primary to secondary improved. For health, under-five mortality fell by 13% since 2015, new HIV infections are down about 40% since 2010 and the World Health Organization has declared 47 countries malaria-free. The same report notes that conflicts, climate stress and debt are slowing momentum and many targets will be missed by 2030, with malaria still a major challenge in the least developed countries.

Solar Hits a New High in Europe

The acceleration is most visible in energy: according to Ember , solar generated a quarter of EU electricity in June 2026 — 52 terawatt-hours, roughly the monthly consumption of 180 million households — beating nuclear, gas, wind and hydro individually and becoming the bloc's single largest source for the first time on a monthly basis. The curve is not linear but accelerating: solar was about 6% in June 2016, took five years to reach 10% and another five to jump to 25%. That is more than a fourfold rise in a decade, with the last doubling in half the time, driven by millions of new panels and a steep learning curve in grid integration. Like the mobile phone, adoption spreads once the threshold is crossed.

The household effect is clearest in Spain. When global gas prices spiked in early 2025 on the Iran-US tensions, many countries saw electricity prices climb, but Spain, with its growing solar and wind fleet, decoupled. Ember's Spain-focused analysis shows the 2021-2022 chart where electricity (blue) and gas (orange) moved almost in lockstep, while in 2025-2026 light-blue areas — periods when electricity stayed below gas cost — widen markedly. The result: an average household saves about 10 euros per month; across roughly 19 million households that is about 190 million euros of collective relief each month. Resilience here is not a slogan but a billed outcome.

Comebacks on Land

Land comebacks tell the same story at three scales. Australia's termite-eating marsupial the numbat was down to about 300 individuals in the 1970s under pressure from foxes, feral cats and habitat loss; by 2026, decades of conservation have lifted the wild population to roughly 2,500. In Old Bonjoge on the shore of Lake Victoria, where erosion had stripped hillsides to rock, a partnership with veritree and Planet Wild planted 80,000 trees — not counted but kept alive: drones mapped the terrain with lasers to pick the best spots, sensors on seedlings tracked growth and microphones listened for returning fauna, with three years of monitoring. At planetary scale, a 40-year satellite study published in Science finds mangroves declined from the 1980s to the late 2000s, then around 2010 gains began to outpace losses and forests grew denser, storing up to four times more carbon than land forests precisely because they live partly in water — a rebound driven by stronger protection laws, less deforestation and the mangroves' own knack for colonising new coasts.

The ocean mirrors that pattern when the pressure is lifted. Bottom trawling (dragging nets across the seabed — highly effective for catch but crushing corals and stirring sediments) is a leading stress on coastal ecosystems. In Scotland's South Arran Marine Protected Area , a trawling ban since 2016 has been followed by documented recovery: protected seabed now hosts twice as many species as nearby trawled patches, with some measures showing seabed life tripling. The proof works in reverse: stop the damage and nature fills the gap quickly. A small prohibition yields a large multiplication — because juvenile fish finally have structure to shelter in.

Memory in Stone and an Early Warning From a Swab

UNESCO's 12 new Global Geoparks in 2025 frame protection differently — geological heritage, biodiversity and culture recognised together. Tunisia's first geopark brings desert landscapes, cave dwellings and traditional oil presses that narrate adaptation to aridity; China's mountain geopark is a living record of how the Tibetan Plateau was shaped over millions of years, paired with an annual pilgrimage festival; Russia's site looks like three ordinary hills but is the remnant of a 300-million-year-old reef, with rocks up to a billion years old, caves and waterfalls exposing deep time; and a small Greek island preserves a crater formed about 150,000 years ago, its Stefanos Crater now a natural laboratory for volcanology. A geopark turns scenery from postcard into classroom.

Medicine is advancing on two fronts at once: earlier detection and prevention. Oral cancer affects hundreds of thousands yearly; smoking and HPV are its two leading risk factors and early capture decides outcomes. Today diagnosis in many places still means a scalpel biopsy and weeks of waiting. The new alternative is a soft swab rubbed inside the mouth to collect cells that are then analysed by an algorithm flagging oral-cancer-linked genes — topping 95% accuracy in clinical testing with results in about an hour — with researchers aiming for clinic rollout within two years after larger trials. Prevention completes the picture: US adult cigarette smoking has fallen to about 1 in 11, the lowest on record (nearly five times that in the 1960s), and e-cigarettes have not simply replaced it, with price rises, campaigns and warning labels reshaping norms — alcohol use is also edging down — while HPV (a family of more than 100 mostly sexually transmitted viruses) is now linked to 60-70% of oral and throat cancers in the US; the vaccine introduced 20 years ago, recommended at 11-12, has already driven cervical cancer deaths among highly vaccinated young women in England to near zero between 2020 and 2024 (around 90% coverage), with early signals that the same approach could curb oral cancers — progress on multiple fronts, not one.