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3-D Domiciles

A 3-D printed house built in 24 hours in Austin, Texas for $10,000 is a prototype that may be used to provide homes for an entire community in El Salvador.

Fire Hounds

Three border collies race around the charred remains of Chilean forests with special satchels on their backs that spread grass and flower seedlings.

Cork Rocks

Cork, which regenerates its bark after harvesting, is an eco-friendly fire retardant and acoustic insulator that also controls odor and humidity.

Rare Breed

About 150 Exmoor ponies roam free on British moors, descendants of the original prehistoric horse that arrived from Alaska 130,000 years ago.

Smart Trash

Solar-powered trash cans with built-in Wi-Fi sensors are being installed in Baltimore to facilitate as-needed emptying of the cans.

Breathe Easy

The indoor air of winter can get stuffy and even unhealthy, but sound strategies will lower airborne toxins, control irritants, and reduce foot-borne pollution.

Secret Ingredients

A new documentary, Secret Ingredients, makes a compelling case for why organic foods may be the key to unlocking better health and reversing chronic illnesses.

Not Yet Extinct

Even as species die out from the impact of human activity, scientists are discovering new ones, including in 2018 a great ape, beetle and marsupial lion.

Eco Jets

Europe’s EasyJet airline is working to get electric-powered planes into the sky with room for up to 220 passengers and a range of 335 miles.

Yule Be Sorry

Because tree growers cut back their planting during the lean years of the recession a decade ago, consumers will be finding fewer Christmas trees to purchase through the next 10 years.

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