The 150-foot-wide asteroid 2012 DA14 may harbor $65 billion of recoverable water and $130 billion in metals.

Science has finally discovered the answer to the centuries-old question of how to turn something into gold.

Photographer explains the story behind Indonesia's majestic Kawah Ijen volcano, which appears to spew eerie blue lava.

Coal mines are destroying the life that its miners have come to know through pollution and job loss.

The Caterpillar 797 is a 50-foot-tall dump truck widely used in the mining industry. Watch what happens when it faces off against a stationary Land Cruiser.

Gone but not forgotten, these once-bustling mining outposts offer visitors a look at Old West ghost towns, from kitschy to untouched.

Worth more than $1 million, this gemstone is distinguished for its rich color palette and light-refracting qualities that defy description.

How do you clean up a river? The answer is twofold: treatment and dilution.

Jaguars used to roam all over the Southwest but now are an extreme rarity. And this unique cat is already threatened by the mining industry.

Sand is becoming a rare commodity. That's because it's the most commonly extracted resource worldwide; more than oil, more than gold. 

An eye-catching community sauna is a symbol of rebirth for the arctic mining town of Kiruna, which is being forced to move 2 miles to the east.

Energy prices are going to get more expensive for all of us, but low-income households shouldn't have to shoulder the burden. Here's how we can help them.

The light emitted after the sun sets could be harvested, according to a new study.

Big Ass Fans unveils an exceptionally smart ceiling fan that learns to start to spinning the minute your sweaty bod enters a room.

Take a tour of Box Office, the first commercial office building in the U.S. built from retired shipping containers.

The Silicon Valley tech startup and the lodging platform partner to help make vacationing in a stranger's condo a more energy-efficient affair.

American-style refrigerators don't just waste energy, they can hurt your health and wallet too.

New research finds that exposure to mildly cooler temps may be the key to shedding pounds.

The cloud wastes an awful lot of energy as heat. One company is putting it to good use.

Who said old houses can't learn new energy-saving tricks?

Matching supply to demand is crucial when it comes to energy. And a concept called demand response can help us do it.

It would take an extraordinary force of nature to blow one of these straw-stuffed brick abodes down.

Our houses are way more efficient than they used to be, but we're using more energy per capita than we ever have.

Months ahead of the UN Climate Change Conference, French Parliament approves aggressive new commercial building rules.

More than 7,000 cities in 172 countries are expected to take part in the one-hour event on Saturday.

An international design competition hopes to bring energy-efficient housing and more to Tristan da Cunha.

A new online investing platform will fund energy-efficiency improvements for churches and nonprofits in poor neighborhoods.

New EPA regulations will clean up the biggest problem with burning wood: pollution and particulates.

We can't just build better; we have to change the way we live.

Sandwich filling, side dish, and main dish recipes for the slow cooker that will keep you and your home cool this summer.

The era of 900-watt-and-higher vacuum cleaners comes to an end in the European Union due to new efficiency standards.

With California-based OhmConnect, it's easy being green when you're also earning green.

For starters, it's more energy efficient than a standard door that swings.

From coffee grounds to flushable wipes, avoid these no-nos when rinsing and flushing.

Farming runoff turns the sea floor into a wet desert and forces species onward or upward.

There is lead in water systems all over North America, but don't hit the bottle yet.

Advanced refrigeration system, nearly a mile long, is meant to keep contaminated water from the damaged nuclear plant from escaping into the sea.

William Henry Harrison, James K. Polk and Zachary Taylor all died under suspicious circumstances.

The color looks radioactive, but activists promise it is nontoxic and harmless to marine life.

"Ain't No Fish" is a stop-motion animated short film that uses a 1940s show tune to highlight ocean pollution.

Dubbed the "Jacuzzi of Despair," this lake on the ocean floor is made of heavy water rich with toxins.

Neolithic humans in the Wadi Faynan region of southern Jordan may have polluted the river while first learning how to smelt.

Those who live in the Quebrada Camarones region of South America's Atacama Desert have a remarkable resistance to arsenic, which is in the water.

Paddlers Paul Twedt and Michael Anderson started their Three Rivers Project to clean up Minnesota's three largest rivers.

Using the Seine as a Summer Olympics aquatic venue is the end goal, but the general public will benefit, too.

Simple chemical process is cheap and safe, and could soon eliminate BPA as a pollutant.

Officials determined the color is caused by pollution in the nearby Kasadi river, and shut down a factory accused of dumping dye.

Because of acidic water, volcanic fumes and too much carbon dioxide, you have to watch where you swim in some places in the world.

Untreated, unfiltered water is a pricey new trend that many are buying into — even though "raw" water could really cause you some harm.

Radium, a naturally-occurring radioactive element that's also a known carcinogen, can be found in water systems across the U.S.