【推荐1】Students at Eindhoven University of Technology didn’t just want to build a car that wouldn’t pollute the air; they wanted to create one that could actually clean it up.

The college team has just exhibited a battery-powered car that absorbs CO₂. Their car, called the Zem, is equipped with a special filter (过滤器) that cleans up the CO₂ produced by other cars on the road.

The Zem was born out of a challenge to build a completely carbon-neutral vehicle. Its body panels (金属板) were 3D printed to reduce waste and minimize the production of CO₂. Recycled plastics were also used throughout the outside and inside. The car’s powertrain, which consists of small battery packs and a 22-kWh motor, also makes use of regenerative braking to increase efficiency.

The real difference maker, though, is the vehicle’s special CO₂ filter. The Zem purifies (净化) the air through the special filter while driving, capturing the CO₂ and storing it. It is able to absorb two kg of CO₂ for 20,000 miles a year, meaning ten cars could store as much carbon dioxide as an average tree — a significant amount when considering the world’s billion cars are currently one of its leading sources of emissions.

Even if the technology isn’t adopted, the team hope that their car can inspire automakers to start making cleaner vehicles. “We want to encourage the industry by showing what is already possible,” the leader of the team said. “If 35 students can design, develop and build an almost carbon-neutral car in a year, then there are also opportunities and possibilities for the industry.”

The Zem is the second zero-emission vehicle we’ve seen come out of the Eindhoven University of Technology. Last year, another team of students created the Stella Vita, a solar-powered vehicle that could travel up to 450 miles a day. We can’t wait to see what the school’s students come up with next.

【推荐2】Abdullah was born in Terengganu, a state on the eastern coast of the Malaysian Peninsular, known for its beautiful tropical islands. Growing up on the coast, he felt a close bond with the ocean. After being adopted as a child, he would escape from his strict home to the seaside to free himself.

The local adults would consider him a strange diving instructor, “who spent his days in the water and spoke to corals (珊瑚) as if they were people”. For a long time, he worked unknown to the public and at times in poverty. But it was this closeness to the sea that led him to study the marine (海洋的) environment, and later, earn a scholarship in Oceanography at the Florida Institute of Technology. With the travels across the globe that this research involved, Abdullah learned about the extensive degradation (退化) in the marine ecosystem. He was enthusiastic about the need to take action to restore the damaged and dying coral reefs.

Abdullah set up Ocean Quest Global in Malaysia in 2010, an environmental organization focusing on coral reef protection. It was buoyed by volunteers working throughout Southeast Asia and the Indian Ocean. Its founder has spent most of his life on the coral reefs of Malaysia, observing their behavior and life cycles, and conducting his own research.

In less than a decade, Abdullah’s organization had expanded to several countries like Thailand, Brunei, and the Philippines. It has over 800 trainers across the world, working on 180 islands, roost of them in Thailand. Most recently, the organization has been actively working on the restoration of Maya Bay on Ko Phi Phi Leh Island, Thailand. It is also building the first subtropical coral nursery in Egypt, reports the diving industry portal, ADEX Ocean Vision.

【推荐1】I traveled to Hawaii several months ago, in part to cover a story on invasive plants and animals and their impact on the state. As I worked on this story, I kept thinking about the fact that some plants and animals become uncontrollably invasive when they’re brought into a new ecosystem, while others don’t. For example, over the past two hundred years or so, there have been approximately 20, 000 non-native plant species either intentionally or accidentally brought into Hawaii alone. But only a small part of those plants — 200 species or so — have become invasive, threatening the environment, the economy, or human health. 

An example from Hawaii’s forests: the invasive plant strawberry guava thrives as it gives off a chemical that prevents all other plants from growing nearby, and it also absorbs more water than native species. What makes these particular species so successful? Most of the reasons involve how a particular species interacts with its new environment. First, invasive species may be highly adaptable to a variety of climates. Second, they are usually quite fecund (多产的), which ensures that they can multiply rapidly. Third, they are usually threatening when it comes to resources like nutrients and space, easily crowding out their native counterparts (对应的物种). And finally, invasive species thrive when there are no natural enemies or pests in their new space.

How can we eradicate invasive species once they’re in place? Unfortunately, it’s nearly impossible to do that — conservationists would have to notice that the species is a problem before its population has established and grown to an uncontrollable size. Instead, most conservationists battling invasive species aim for control in key ecological pockets.

It is a constant battle, though, and humans are always playing catch-up. If you’re thinking of planting unusual plants in your garden or keeping a foreign pet, perhaps reconsider and go for a native one. You never know when they might escape and tip over an ecosystem.

【推荐2】Swimming with Wild Dolphins in Kaikoura, New Zealand

Many of my most adventurous travel stories come from my time living in New Zealand.

In November 2018, I decided to live life to the fullest and say yes to all of the adventures that came my way in the country. This travel story is one of my favorite adventures: swimming with wild dolphins in Kaikoura.

I woke at 4 a.m. to a pitch-black hostel room, my eight roommates all still sound asleep at the early hour. I snuck out on tiptoes to change, crammed a cheese roll in my mouth, and dragged the suitcase holding a year of my life to the Kaikoura dolphin-watching tour office. With just a few hours of sleep in my system and more adrenaline(腺上肾素) than I had jumping out of a plane, I tugged on my insulated wetsuit in a blur.

The moment we dove off the water, I was shocked awake. No amount of coffee, tea, or sugar has ever given me such an intense wake-up. It turns out, the ocean is freezing at 5 a.m., before the sun has risen and in early-spring.

Don’t be scared off by the temperature, though, because 5 a.m. is when the dolphins are most playful!

For five seconds, I struggled to breathe through the cold. Then, the wetsuit flooded with water and I was warm.

A moment later, I was face to face with a wild dusky dolphin, one of the smallest species of dolphin in the world! Swimming with it, the dolphin twirled at the surface of the water while it spun in spirals beneath me.

I hummed strange Dory-esque whale noises to draw the attention of more members of the pod, including a tiny baby dolphin no bigger than my calf. He seemed most interested in the strange bug-eyed thing that kept getting tangled in her own flippers.

The sun rose, warming my back as I continued to flounder amongst the most elegant animals in the ocean. It was the most beautiful sight, watching as the dark blue of the ocean turned a sunny turquoise, brightening our swimming companions for the first few hours of dawn.

The practice of swimming with wild dolphins is banned in the North Island, where the species of Hector’s dolphins are in decline. But in Kaikoura, the practice is thriving and actually helping to restore the dolphin populations.