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Two captive tigers were released in a semi-natural enclosure in Kazakhstan's Ile-Balkhash Reserve in September 2024, the first in the region in more than 70 years.
Living Image/WWF
Kazakhstan’s last tigers disappeared decades ago. Now, they’re coming back
Blended wing aircraft could slash carbon emissions. This rendering shows a design by San Diego-based Natilus, which says its Horizon plane will carry about 200 passengers while producing half the emissions and using 30% less fuel than current Boeing 737 and Airbus A320 aircraft. <strong>Scroll through the gallery to see more aircraft innovations.</strong>
Natilus
‘Horizon’ plane’s innovative shape promises greener flights and added comfort
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Fundación Kara Solar/ Pablo Albarenga
Solar-powered boats are silently sailing through Ecuador’s Amazon rainforest
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Almudena Romero
Instead of using film, this artist prints photos onto living plants
In Borneo, where deforestation is widespread, non-profit Health in Harmony (HIH) operates a chainsaw buyback scheme where farmers involved in illegal logging receive money in return for handing in their chainsaws.
Health in Harmony
A chainsaw amnesty is protecting the rainforest in Borneo
Render of a design by Dutch startup Elysian of its fully electric regional aircraft, which it says will have a range of 500 miles.
Elysian
Fully electric 90-passenger plane could fly 500 miles
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courtesy Justdiggit
Greener pastures: Can ancient eco-engineering help fix our degraded landscapes?
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A. Mertens/Shutterstock
These ‘shy’ sharks are under threat, so researchers are using AI to track them
brooklyn bugs tempura tarantula story RESTRICTED
Brooklyn Bugs
Meet the New York chef who wants to change our diets one bug at a time
19a bamboo buildings IBUKU
Tommaso Riva / Ibuku
Bamboo has been used for thousands of years in Asia. Now, it could help solve construction’s sustainability problem
W6RC0R Teepees as rental accommodation in a small grove in the West Block of Grasslands National Park, in southern Saskatchewan. Date taken: 8 July 2019 Contributor: Timothy Hellum / Alamy Stock Photo Location: Saskatchewan, Canada
Timothy Hellum/Alamy
The fight to preserve the last quiet places on a noisy planet
Gabriela Medero
Zero Waste Scotland
We’ve been using the same bricks for over 5,000 years. This engineer says it’s time for a change.

watch the latest going green videos

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CNN
Video From fruit to fashion: how pineapple waste is turned into textiles 4:28
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CNN
Video Footwear has a huge environmental footprint. FastFeetGrinded is aiming to change that 4:42
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Video Meet the sustainable fashion pioneer channeling circularity 4:05
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CNN
Video From waste to wear: how one Finnish company is turning old clothing into new textiles 3:50
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CNN
Video Making supply chains more transparent 3:58
Puffadder shyshark (Haploblepharus edwardsii) swimming on the ocean floor.
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Madelein Wolf/Getty Images
Video Protecting the elusive shyshark 1:57
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Video A greener solution for desalination 4:09
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Video Creating beer from recycled graywater 2:23
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Video A plant-based solution prevents millions of pounds of food from going to waste. 5:55
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Video The 16-year-old activist protecting Africa’s largest lake 2:17
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Video From science experiment to saving the bees 2:01
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Video Dreaming of Mars, this scientist is creating fuel from captured carbon 2:54
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• Video 2:14
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Video Planting a trillion trees to curb climate change 2:14
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Video This Gen Z water activist is seeing the glass as half full 4:51

catch up on past episodes

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• Video 23:01
Video Greening the fashion industry 23:01
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• Video 23:14
GERARD JULIEN/AFP
Video Securing our planet’s water 23:14
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• Video 22:54
CNN
Video These innovators are extending the lifecycle of our food 22:54
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• Video 22:59
Video Meet five Gen Z eco-warriors carving the path to a greener future 22:59