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Nature & Environment

109 Articles in this topic
Travel

Japan Volcano Alert for Tourists: Sakurajima's First Pyroclastic Flow in 8 Years and Mount Meakan's Quake Surge. What Visitors Need to Know

Two Japanese volcanoes are on heightened alert at the same time. Sakurajima produced its first pyroclastic flow since 2018 on May 8, while Mount Meakan in Hokkaido recorded 254 volcanic quakes in 24 hours. Here's what tourists need to know about nearby destinations, alert levels, and trustworthy sources

Nature & Environment

WANTED: Muntjac, ¥2,000 per Sighting. What Is This Cute-Looking Deer, and Why Is Japan Paying People to Spot It?

A Reeves's muntjac was sighted in Sakai, Ibaraki Prefecture in late April, the first confirmed sighting in two years and five months. Under Ibaraki's first-of-its-kind ¥2,000 bounty program for citizen-submitted photos, this should have been the first qualifying case. Why is Japan offering cash for sightings of a cute, dog-sized deer? We unpack the agricultural damage, the SFTS tick-borne disease angle, the unsettling lessons from Britain, and what happens if the front line in Ibaraki fails.

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Society

$640M Rare Earth Mining Vessel: Japan's LDP Pushes National Project to Beat China Dependence

Japan's ruling LDP has asked the government to build a dedicated rare earth mining vessel for ~100 billion yen ($640M) at Minamitorishima, handing the proposal to Prime Minister Takaichi on June 12, 2026. Why JAMSTEC's Chikyu isn't enough, the roadmap from the February 2027 demonstration test to FY2028 industrialization, and how Japan's approach compares with the US, EU and Australia.

Nature & Environment

Bear Sonic: Can Japan's Chalkboard-Sound Device Save a Country in Crisis?

In April 2026, all six Tohoku prefectures issued their earliest-ever bear alerts. A fatal attack in Iwate, Aomori's first urban emergency hunting in Hachinohe. Meanwhile, Shirakawa-go deployed 10 'Bear Sonic' units emitting a chalkboard-scratching sound. In Toyama, sightings dropped to zero for a year after installation. Can this Japanese acoustic technology save the day?

Travel

Invasive Beetle Hits Yoshinoyama Cherry Trees: A 1,300-Year-Old World Heritage Site Under Threat

Frass discovered on a wild cherry tree at Yoshinoyama, Nara—home to 30,000 sacred cherry trees revered for 1,300 years—has been confirmed as damage from the invasive red-necked longhorn beetle. The first such case in any Japanese national park. A story at the intersection of invasive species, climate change, and cultural heritage.

Nature & Environment

Pill Bug Biomineralization Mystery: Japan Discovers Backyard Bugs Rebuild Stones Into Armor

Researchers at the University of Tsukuba have discovered that pill bugs (Armadillidium vulgare) don't just incorporate the calcium carbonate they eat; they rebuild it from scratch inside their bodies, always producing calcite even when fed aragonite. The unexpected polymorph control reveals a deeper biomineralization mystery and may inspire next-generation biomimetic materials.

Nature & Environment

Crested Ibis Returns to Honshu: Japan's Imperial Couple Attends Historic May 31 Release in Noto, 56 Years After Mainland Extinction

On May 31, 2026, Crested Ibises were released in Hakui City, Ishikawa, the first wild release on Honshu in 56 years. Crown Prince Akishino and Princess Kiko attended, returning to a milestone they witnessed in 2008 on Sado Island. The release is also a symbol of recovery from the 2024 Noto Peninsula earthquake. We compare this revival story with the California Condor and Korean Oriental Stork programs.

Travel

97.4m Depth Record: Japanese Diver Reaches Bottom of Oita's Inazumi Underwater Cave, Reveals 300-Million-Year-Old Geology

At Inazumi Underwater Cave in Oita Prefecture, professional diver Yuji Ohama (60) and his team reached 97.4m depth on March 20, 2026, likely a Japanese national record for underwater limestone caves. Formed 300 million years ago and submerged by an Aso volcanic eruption 85,000 years ago, the cave's deepest section revealed primordial stalactites and geological strata never seen above ground. We compare this discovery with Mexico's cenotes and Florida's cave systems, and explore Japan's only commercially diveable underwater limestone cave.