Our directory of things of interest

University Directory

Base behaviour: kayaktavists in Japan

Base behaviour: kayaktavists in Japan
29 Sep
2018
A relocated military base in Okinawa, Japan will cause ‘irreversible’ damage to a rare ecosystem, say environmental groups

Protests against a new US air base are taking place in the sea. In recent months, hundreds of ‘kayaktivists’ have patrolled the coast of Henoko Bay on the island of Okinawa, Japan, the bright colours of the boats at odds with the paddlers’ serious expressions. For most of the protests, US base personnel have watched from the beach, flanked by amphibious tanks. If the US Air Corps has its way, the waters will be landfilled to support two full-size runways surrounded by a seawall. Twenty million cubic metres of material will be dumped into the water to reclaim an area the size of 160 rugby fields. Construction will take five years but began to pick up over the summer. ‘Sediment input could begin at any time,’ says Kanna Mitsuta, executive director of Friends of the Earth, Japan. She warns that landfill will come at the cost of one of the most ecologically significant marine sites on the island.

Campaigners are particularly concerned about the fate of the dugong, a rare mammal similar to a manatee. Rarely seen – but given away by their telltale feeding paths through sea grass – the handful of dugongs at Henoko are the last of a once healthy Okinawa population. ‘The dugong used to come and feed here, but have been unconfirmed since the US base construction began,’ says Tomiko Suzuki, a member of the kayaktivist group Henoko Blue. ‘Altogether there are around 5,200 different marine species here,’ says Mitsuta, ‘262 of those species are endangered, including recently discovered reefs
of blue coral.’ The variety of life comes from Henoko’s diverse topography, including mangrove forests, seagrass beds, tidelands, sands, mud flats and coral reefs. According to campaigners, the construction plans have underestimated the complexity of this terrain. ‘The seafloor is as soft as mayonnaise for 30 metres down,’ says Mitsuta. ‘The amount of work needed to reinforce it will be costly as well as irreversible.’

Okinawa has been a military hotspot since the Second World War - Japan’s only home-fought battle took place on its soil. After the war, US forces occupied the island for 20 years longer than the rest of the country. Though it represents less than one per cent of Japan’s landmass, it continues to host nearly three-quarters of the 47,000 US troops based in the country and has the largest contingent of marines outside the US. The protests have contributed to anti-US sentiment in the area, centred around long-held concerns about the bases’ high crime rates and transportation hazards.

This was published in the October 2018 edition of Geographical magazine 

geo line break v3

Free eBooks - Geographical Newsletter

Get the best of Geographical delivered straight to your inbox by signing up to our weekly newsletter and get a free collection of eBooks!

geo line break v3

NEVER MISS A STORY - Follow Geographical on Social

Want to stay up to date with breaking Geographical stories? Join the thousands following us on Twitter, Facebook and Instagram and stay informed about the world.

More articles in NATURE...

Wildlife

Since 2006, tiger habitats have shrunk by more than 40…

Climate

Advances in space-based lightning mapping have allowed scientists to measure…

Energy

The amount of energy used by the wealthy minority dwarfs…

Wildlife

Left denuded and depleted of wildlife following a decades-long civil…

Climate

Katie Burton explores the practicalities and ethics of geoengineering, the…

Energy

Though the pandemic has gripped the world's attention, lying just…

Climate

The IPCC embraced the notion of carbon offset schemes in…

Geophoto

The shortlist for the 2020 Wellcome Photography Prize has been…

Climate

Millions have been displaced due to severe floods in central…

Wildlife

A portable DNA assay could revolutionise the way border officials…

Climate

A handy gathering of facts about carbon emissions with graphs…

Oceans

Researchers have revealed just how many polluting microfibres are released…

Wildlife

Increasing reports of seized jaguar fangs and skin suggest that…

Geophoto

Forced isolation has given many of us the chance to…

Oceans

A fifth of the ocean floor has now been mapped,…

Wildlife

Four ex-circus lions discovered in France are due to be…

Oceans

A roundup of some of the top discussions from the…

Energy

The agave plant, used to make Tequila, has proven itself…