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In March, days before her 15th birthday, Ashima Shiraishi successfully climbed Horizon on Mt. Hiei in Japan. She became the first woman and youngest person ever to solve the “V15” boulder( 攀岩) problem, considered the most difficult type of problem in the sport.

Shiraishi is also the world’s youngest person to solve the V10,V13,and V14 boulder problem, which she did at ages 8, 10, and 13.

“Once I have a project in mind, I don’t really give up,” she said. “And even if my skin is looking really bad from bouldering, I’ll just get back on it.”

The New York City native first got to know the sport at age 6 when she saw park-goers climbing Rat Rock in a city park in New York City. Attracted, she started climbing it every day after school and began training at an indoor climbing gym soon after.

She won her first competition at age 7, competing against grown women climbers.

“It was mostly the movement that really attracted me because it was almost like dancing. It felt like I was dancing on the rock,” she said.

Watching Shiraishi climb is like watching a dance of mental and physical courage. At 5-foot-1 and 100 pounds, she could be considered at a physical disadvantage compared to taller climbers who can reach holds more readily. But she makes up for it with smooth movements that only a climber of small size could make.

“The most important part of climbing is not really thinking at all. Once you start thinking, you doubt yourself, and that’s the worst that could happen to you,” she said.

Shiraishi hopes to compete on the most important stage for sports, the 2020 Olympic Games in Tokyo, where climbing will make its first official appearance.

The world’s animal populations have decreased by more than two-thirds since 1970, according to a recent research from the World Wildlife Fund (WWF).

The London group provided information on 32,000 wildlife populations which included more than 5,000 species. The researchers found that population sizes had declined by 69 percent on average. They said the loss of forests, human exploitation (开发) of the environment, pollution, and climate change were great causes of the loss. Land-use change is still the biggest threat to wildlife. However, the researchers added, ”if we cannot limit warming to 1.5“C, climate change is likely to become the dominant cause of biodiversity loss in the coming years.”

Wildlife populations in Latin American and the Caribbean Sea area were greatly affected. The research showed a 94 percent drop in those areas in over 50 years. Wildlife populations in river and lake habitats decreased the most. Freshwater populations have declined by an average of 83 percent since 1970. For example, one population of pink river dolphins in the Amazon River area of Brazil fell by 65 percent between 1994 and 2016.

These findings are a red flag that warns of a larger system failure on the horizon. Even one species’ population decline can affect other species, eventually impacting the ecosystem’s ability to function. Humans depend on a stable climate, predictable weather patterns, and productive farmland and fisheries to thrive (蓬勃发展), but the current trends are severe enough to threaten many life-sustaining systems.

Our future depends on reversing(扭转) the loss of nature just as much as it depends on dealing with climate change. And you can’t solve one without solving the other. Everyone has a role in reversing these trends, from individuals to companies to governments. If nothing changes, animal populations will undoubtedly continue to fall, driving wildlife to extinction and threatening the integrity (完整) of the ecosystems on which we all depend.