Japan

child and autumn leaves

Tokyo to make daycare free for all preschool children

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The world’s most populous city plans to make daycare free for all preschool children starting in September, the city governor has announced. The move aims to reduce the financial burden on families by expanding a policy of free daycare for second-born and subsequent children to first-borns as well. While many developed countries are struggling with low birth rates, the problem is particularly acute in Japan where the population has been declining for years.

Pride flag

Japanese court rules marriage equality ban unconstitutional

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The Fukuoka High Court of Japan has become the third of Japan’s eight high courts to rule that the government’s policy against same-sex marriage is unconstitutional. High Court Judge Takeshi Okada ruled that civil laws forbidding same-sex marriages violate the nation’s constitution, saying, “There is no longer any reason to not legally recognize marriage between same-sex couples.” However, he noted that any change in national marriage laws must be decided by Japan’s legislature, known as the National Diet.

Human eye up close

Japanese researchers develop world-first stem-cell treatment that restores vision in humans

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Kohji Nishida, an ophthalmologist at Osaka University in Japan, and his colleagues used an alternative source of cells — induced pluripotent stem (iPS) cells — to make the corneal transplants. They took blood cells from a healthy donor and reprogrammed them into an embryonic-like state, then transformed them into a thin, transparent sheet of cobblestone-shaped corneal epithelial cells. After the transplants, all four recipients showed immediate improvements in their vision and a reduction in the area of the cornea affected by limbal stem-cell deficiency. The improvements persisted in all but one recipient, who showed slight reversals during a one-year observation period.

Wooden satellite

World’s first wooden satellite, developed in Japan, heads to space

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LignoSat, developed by Kyoto University and homebuilder Sumitomo Forestry, opens new tab, will be flown to the International Space Station on a SpaceX mission, and later released into orbit about 250 miles above the Earth. Named after the Latin word for “wood”, the palm-sized LignoSat is tasked to demonstrate the cosmic potential of the renewable material as humans explore living in space. Decommissioned satellites must re-enter the atmosphere to avoid becoming space debris. Conventional metal satellites create aluminum oxide particles during re-entry, but wooden ones would just burn up with less pollution.

Second Japanese high court rules in favor of same-sex marriage

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A Tokyo high court in Japan recently ruled that the government’s policy against same-sex marriage is unconstitutional. The ruling marks the second time that one of the nation’s eight regional high courts has ruled in favor of marriage equality. The Tokyo high court ruled that the country’s ban on same-sex marriage is “a groundless legal discrimination based on sexual orientation” that violates the constitutionally guaranteed right to equality and dignity regardless of sex.

Mouse

Japanese scientists reverse Alzheimer’s synapse damage in mice

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Scientists from the Okinawa Institute of Science and Technology say they have reversed the signs of Alzheimer’s disease in lab mice by restoring the healthy function of synapses, critical parts of neurons that shoot chemical messages to other neurons. If the treatment successfully survives the gauntlet of clinical studies with human participants, it could potentially lead to a groundbreaking new treatment for humans suffering from the deadly disease.

Wooden satellite

Japanese scientists build world’s first wooden satellite

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The satellite dubbed LignoSat, a collaboration between Kyoto University and the company Sumitomo Forestry, is reportedly slated for launch in September onboard a SpaceX rocket. If successful, the tiny device — just four inches on each side — could represent a major breakthrough in space sustainability efforts. The idea is that it’ll burn up entirely upon reentry, vastly reducing its environmental impact compared to traditional metal spacecraft.

Coal pollution

G7 agree to close all coal-fired generating stations by 2035

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Energy ministers from the G7 countries — Canada, France, Germany, Italy, Japan, the United Kingdom, the United States, and the European Union — agreed at a meeting in Turin, Italy, to close all coal-fired generating stations in their countries by 2035 if not sooner. Putting an end date on coal — the most polluting of all fossil fuels — has been highly controversial at international climate talks. Until this point, Japan, which derived 32% of its electricity from coal in 2023 according to the climate advocate Ember, has blocked progress on the issue at past G7 meetings.

Solar panels reflect sparkling light from the Sun

Japan “fossil fuel dinosaur” launches massive 20GW global renewables platform

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Jera, Japan’s largest power company and one of the largest thermal power producers in the world, has announced the launch of a major new global renewables business, becoming the latest fossil giant to act on the existential threat of net zero to its business model. Based out of the U.K., the new company – called Jera Nex – will be tasked with delivering on Jera’s stated ambition to develop a massive 20GW of renewable capacity by 2035, enough to power millions of homes.

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