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This week brought significant progress on several important global issues. From a major agreement to protect animals on the move to new laws in Japan and Africa, important steps were taken. Important advances in science and signs of changing social media habits also marked the week.
More than 130 governments have agreed to stronger protections for migratory animals. The agreement was reached at a major conservation meeting in Brazil. It focuses on reducing the accidental catching of wildlife in fishing equipment. It also aims to strengthen protected pathways on land and sea for migrating species. These animals include manta rays, jaguars, and many types of birds.
Scientists warn that 49% of the migratory species covered by the agreement are now in decline. This is an increase from just 44% two years prior. Conservation groups praised the new plan. Birdlife International called it "a major breakthrough for migratory birds." The World Wildlife Fund said it was a "vital step for both people and nature."
African nations have finally made a continent-wide road safety plan into law. Africa has the most dangerous roads in the world, with the highest number of traffic deaths. The African Road Safety Charter was created in 2016. It became official after Mozambique became the 15th country to approve it.
The charter commits nations to a clear goal: cutting road deaths and serious injuries in half by the year 2030. To do this, countries must create national road safety agencies. They must also invest in safer roads and enforce important laws, like those requiring seat belts. The World Health Organization described the move as a "milestone for Africa." An expert from the WHO said this is the kind of strong action needed to reverse rising death numbers.
Japan has changed a long-standing law about divorce and children. Until this week, Japan was the only major industrial nation that did not allow divorced parents to share legal custody of their children. The old system gave all custody to one parent, usually the mother. That parent had the power to cut off the other parent from seeing the children.
Under the new law, parents can now negotiate for joint custody in family court. Parents who divorced before the change can also apply to have their custody arrangement reviewed. Critics of the old system argued it hurt children by destroying the relationship with one parent. Reports say one in three Japanese children with divorced parents lose contact with the non-custodial parent.
Some people worry the new law could be misused by domestic abusers. However, the law states that courts are not allowed to grant joint custody when abuse is a factor in the divorce.
A major study shows that rewilding projects in Scotland are working extremely well. Rewilding means helping natural habitats recover by reducing human management. Researchers surveyed over 100 rewilded sites and compared them to nearby regular land. The results showed a huge increase in the variety of life on the rewilded land.
The number of bird species soared by 261%. The number of places where birds were nesting increased by 546%. The variety of bumblebee and butterfly species more than doubled. Their total numbers increased over ten times. The number of nectar-rich flowers for these pollinators rose by about 250%.
Threatened bird species, like the spotted flycatcher and cuckoo, are now relatively common on these lands. This goes against the national trend of severe decline. A conservation charity said the research provides some of the strongest evidence yet that rewilding delivers real ecological recovery.
In related news from Scotland, a rare mammal is making a comeback. The Orkney vole is found nowhere else in the world. Its numbers dropped after invasive stoats were accidentally introduced to the Orkney islands. Stoats eat voles and upset the local ecosystem. A project to remove stoats from the archipelago began in 2019. Ecologists now report the highest number of Orkney voles since the project started. Other species that eat voles are also benefiting. The hen harrier, a rare bird of prey, and short-eared owls have seen their numbers rebound.
A well-known weight loss medicine will now be used in the UK to help prevent heart attacks and strokes. The UK's National Health Service announced the plan this week. The drug, called semaglutide, is the active ingredient in medicines like Wegovy and Ozempic. Clinical trials showed it can reduce the risk of serious heart problems. This benefit is separate from any weight loss the drug causes.
The plan is to prescribe weekly injections of the drug to over one million people in the UK who have cardiovascular disease. It will be given alongside advice for a healthy diet and more physical activity. A heart disease expert said the move "will no doubt help save lives." She explained that these medicines are now considered important for preventing deadly heart emergencies.
Japanese scientists report a major step forward in solar panel technology. Solar power is already the cheapest and fastest-growing source of electricity. Now, researchers at Kyushu University say they have broken a long-standing efficiency limit. Traditional solar panels cannot capture more than 100% of the sunlight that hits them. The new prototype design claims to reach an efficiency of 130%.
It does this by capturing energy that was previously lost as heat. The researchers called this a feat that previously "seemed impossible." This development opens the door to creating new, ultra-efficient solar panels. The university cautioned that the work is still at an early, proof-of-concept stage. More tests are needed before this technology can be widely used.
Adults in the United Kingdom are using social media differently. A survey by the UK's media regulator, Ofcom, found people are becoming more cautious about digital platforms. Concerns are growing about screen time and the effect of endless scrolling on mental health.
The number of adult users who actively post or comment on social media fell from 61% in 2024 to 49% in 2025. Also, the percentage of adults who felt the benefits of being online outweighed the risks dropped from 72% to 59%. The research also showed rapid adoption of AI tools among adults. More people are also trying to make money online with "side hustles."
This research was conducted before a recent landmark court case in the United States. In that case, a jury ruled that social media platforms were deliberately addictive and had harmed a young user's mental health. Some commentators compared the case to historic lawsuits against tobacco companies.
The International Booker Prize announced its shortlist of finalists this week. The prize is a major award for fiction translated into English. The judges said this year's selected books are full of "hope, insight and burning humanity." Six authors and their translators will compete for the £50,000 prize.
Their stories include tales about a suburban witch, a filmmaker with moral problems, and a multigenerational family of Iranian emigrants. The chair of the judging panel said that while the stories contain heartbreak and brutality, their overall effect is energizing. The winner of the prize will be announced on May 19th.