1 . Like many of the Indigenous (土著的) communities across the Australian continent, the remote communities in north-west New South Wales are struggling. Many of the 300 or so residents rely on welfare. Higher electricity bills—up to $3,000 a quarter for some households—further worsen the poverty. They’re always at the end of the power line, so the service that is there is quite extraordinary in terms of cost. It’s a real problem that needs to be fixed.

To that end, Anderson and other Indigenous leaders have formed the First Nations Renewable Energy Alliance (FREA) to push for renewable energy in Indigenous communities. They partner with private enterprise to support Indigenous communities looking to switch to renewable energy.

“We can build a power station where the community exists,” Anderson says, “so people are able to successfully live in the environment the way they want to live and have access to power which enables them to better determine their economic future.”

Only a handful of Indigenous communities have set up renewable energy projects in Australia. The Indigenous-owned and -operated company AllGrid Energy, for instance, has installed solar panels and battery storage systems to replace diesel (柴油) generators in the communities of Ngurrara and Kurnturlpara in the Northern Territory’s Barkly Tableland. Within two months of the system being installed in May 2016, people were moving back to their homelands, the communities growing from just two permanent residents to about 40.

But FREA will go one step further, working with community leaders and acting as a conduit (纽带) between the communities and the businesses they are dealing with. This is essential, says Anderson, to avoid predatory (吞并) practices they have seen in the past, with companies “playing on the psychology of poverty” to gain advantage. The FREA has drafted terms of agreements that will guide how companies engage with Indigenous communities for renewable energy projects.

One of the next steps for FREA will be to identify a community that can act as a test case for a renewables project. “Our experience is that if we can make it work for one community, it will work in every other community,” Anderson says.

2 . It’s an unusually calm morning for Jim Smith, owner of Ventura Dive Sport, and lifelong seaman. He’s in charge of the Raptor, carrying a boatload of divers and snorkeling(浮潜) enthusiasts over to the Channel Islands anchored just off the Southern Californian coast, in the remote Channel Islands National Park.   

On this trip, in particular, Smith is hoping to spot giant black sea bass, a huge underwater creature that grows over seven feet long and can weigh more than 700 pounds. Unsurprisingly, it’s a fish that sits atop the food chain, and the species is an important part of the marine (海洋的) ecosystem.

Up until the 1970s, black sea bass were a common sighting in Southern California, but due to overfishing their population dramatically declined. As a result, fishing for giant black sea bass of any kind was banned in California in 1982. In the Channel Island region, thanks to the protected waters of the national park, there is a promising sign-a recent survey found around 50 individuals around the Catalina Island alone.

Marine biologists’ photos-and indeed anyone else’s-now have a permanent home, on a newly-created database named Spotting Giant Sea Bass. The website, launched and run by the Aquarium of the Pacific in July, is a joint community effort to find out more about these mysterious creatures. Scientists hope to be able to answer how the population is changing over time, how far giant sea bass move, where they spawn (产卵), and how they grow in marine protected areas. With more than 1 million dives recorded annually across the Golden State’s coastline, researchers hope a joint effort to document this species will aid with its recovery.

“One of the main things people want to see when they come out with us during September and October is giant sea bass,” Smith says. “If you’re lucky enough to be on a dive and one swims past you. . . it really is the most incredible experience. ”

5 . Humans eat an astonishing amount of meat every year-some 800 billion pounds of it, enough flesh to fill roughly 28 million dump trucks. Our desire for meat, particularly in industrialized countries like the United States, is one reason why the planet is warming as fast as it is. Raising animals consumes a lot of land that could otherwise soak up carbon. Cows, sheep, and goats give out heat-trapping methane (甲烷). And to grow the corn, soy, and other plants that those animals eat, farmers spray fertilizer that emits nitrous oxide (一氧化二氮), another planet-warming gas.

Cutting out meat sounds like an effective approach. But what would happen if everyone actually stopped eating meat tomorrow? Such a quick shift probably wouldn’t cause the sort of turmoil that would come if the planet immediately abandoned fossil fuels. But still, the consequence could be quite chaotic, causing different problems.

Researchers say the economic damage caused by the sudden disappearance of meat would fall disproportionately on low-income countries with farming economies, like Niger or Kenya, where farming and raising livestock are critical sources of income. Getting rid of livestock overnight would not only deprive many people of essential nutrients, but also threaten food security, especially in regions like South Asia and sub-Saharan Africa. Besides, there’s the issue of cultural damage. Taking away meat, according to Wilson Warren, a history professor at Western Michigan University, would do more than just deprive Americans of hot dogs and hamburgers and Italians of salami.

Rejecting meat entirely, let alone immediately, isn’t an ideal solution to the climate crisis. Dutkiewicz, a political economist at the Pratt Institute, suggested using guidelines established by the EAT-Lancet Commission, an international group of scientists who have designed a diet intended to give people the nutrients they need without destroying the planet.

6 . Once upon a time, sewing and mending clothes was common.     1     Why have people stopped mending their clothing? Schools stopped offering home economics classes, technology boomed and fast fashion became increasingly popular. All of a sudden, it’s more inconvenient to fix something than it is to buy something new.

    2     In the past few years, it seems there’s been growing interest in slow fashion—not only saving, but also sewing and mending. On one of the most pleasant corners of the internet, you’ll find lots of videos showcasing everything from visible mending to beginner sewing journeys.

Why should you learn to mend?     3     As any eco expert will tell you, the best thing you can do is buy less to begin with. That means shopping for quality items that will stand the test of time, but also learning a few key skills so you can repair those items as needed rather than sentencing them to life in an already-overflowing landfill. It’s also helpful to customize (改制) secondhand items which might not be exactly the right size or a little out of date.     4    

Beyond the functional benefits, mending is about using what you have, embracing imperfections, fixing what’s broken, and rejecting the idea that new er is better. The other aspect of mending is mindfulness.     5     It’s meditative (冥想的), slow work. It’s productive, and deeply satisfying. And an added bonus: It’s sustainable.

If you are interested in sewing and mending, it is the perfect time to learn the new skill. which can especially have a positive impact on the world.

7 . At first glance the sea turtles look as if they were dead because they hardly move. But if you look closely enough, they show a slow glimpse of life. These turtles are all washed up in Massachusetts every December, on the windy beaches of Cape Cod Bay.

Shaver, chief of the Division of Sea Turtle Science and Recovery at Padre Island National Seashore in Texas, said, “If we don’t help save this species, we will lose a piece that enriches us. There’s a whole variety of things that can harm them: oil spills, boat strikes, red tides, and so on.” That is why all the urgent care they’re getting back up North is more important than ever.

Saving could never happen unless hundreds of pilots were willing to volunteer their time, their planes, and their fuel to rush the rescued turtles to willing rehab facilities (康复中心) all around the country.

On this particular mission, Andrews, vice president of a unique nonprofit called Turtles Fly Too, with his dad as a co-pilot, will fly more than 2,000 miles, from Boston, to Atlanta, then on to Gulfport and finally Dallas, dropping off 44 sick sea turtles along the way, in hopes that one day they’ll be well enough to be released. It is worth mentioning that the pilots that are flying these missions are pulling $1 million out of their pocket to fly these missions every year.

With good care and the help of volunteers, these turtles were finally ready to go home again. According to Andrews, “90% of the turtles that we’ve moved to the rehab facilities have ended up back in the ocean.”

“We humans have not always been kind to the sea and those that live in it. But on this day, it was humans-not me, but the hundreds of veterinarians, biologists, volunteers, and pilots—who all came together to give these critically-endangered sea turtles a second chance that they rarely got, ”Andrews added.

8 . People have come to understand the enormous impacts-beneficial as well as harmful- plastics have on human lives and the environment. As polymer (聚合物) scientists committed to inventing sustainable solutions for real-world problems, we set out to tackle the issue of plastic waste by rethinking the way polymers are designed so we could make plastics with recyclability built right in.

Everyday items including milk jug, grocery bags, and takeout containers are made from a class of polymers called polyolefins. These plastics are really durable (耐用的) because the chemical bonds in those polymers are extremely stable. In a world set up for disposable (一次性的) items, durability is no longer a design feature but rather a design drawback. Imagine if half the plastics used today were recyclable through twice as many processes as they are now. Also conventional recycling requires careful sorting of all the collected materials, which can be challenging with so many different plastics. For example, separating paper from metal doesn’t require complex technology, but sorting a container from a milk jug of a different polyolefin is difficult to do without the occasional mistake.

In a study published in Science in October 2023, we described a series of polymers with only two building blocks-one soft polymer and one hard polymer-that behave like polyolefins but could be chemically recycled. Connecting two different polymers multiple times until they form a single, long molecule (分子) creates what’s called a multiblock polymer. By changing how much of each polymer type goes into the multiblock polymer, our team produced a wide range of materials with properties that covered all polyolefin types.

Using the same strategy but by adding hydrogen, we could disconnect the polymers back into their building blocks and easily separate them to use again. When we made new polymers out of these recycled plastics, they performed just as well as the original materials even after several rounds of chemical recycling. So we were able to create materials with similar properties of the plastics the world relies on. We believe this work is a step toward more sustainable plastics.