Treating the country's 110 million STDs comes with a price tag of $16.7 billion a year.

Here are the key facts about the cases and what's behind them.

The same-sex marriage rulings by the Supreme Court are but the most recent in a long history of cases that reshaped the family structure.

Although syphilis was nearly eliminated from the U.S. about a decade ago, the sexually transmitted disease has resurged in recent years.

Billed as the first charity 'F-bomb-athon' this is of the most satisfying rants about the BP oil spill yet. Do not listen in the presence of small children.

On the heels of the government's dietary guidelines, Environmental Working Group releases its own version, free from food industry interference.

The mission aims to track the potential impact of methane and carbon dioxide emissions on climate change.

This week: Historic homes with gruesome backstories, a woman wages war against rodents and Martha Stewart pays her respects to American crafters.

An Olympic bid is as good a reason as any for the Parisian architectural landmark to get all gussied up.

President Barack Obama challenged world leaders to join the United States in fighting global warming. Watch the entire 10-minute speech here.

For 55 years, photographers have showcased their work in the Natural History Museum, London's Wildlife Photographer of the Year competition.

Bees make it and we get to enjoy it. But honey is good for more than just sweetening recipes, here are 10 ways to use honey.

Sales of organic are growing and dairy farms are getting incentives to switch to organic farming. Is voting with our dollars actually working?

Covering some 500 million acres of ocean, the expanded marine sanctuary would be four times larger than California.

In "Ajijaak on Turtle Island," a young crane's migration journey brings Native American stories to life.

A hydroponic agriculture venture named Growing Underground is based in an air raid shelter 100 feet beneath the streets of London.

Could this be a Christmas miracle in London ... or the ultimate cold weather pipe dream?

An uptick in seahorse spottings in London is a sign that the iconic English waterway is getting cleaner by the year.

That tub of Vaseline that you probably remember seeing in your grandmother's house warrants a spot in your medicine cabinet, too.

Here are some off-the-beaten-path cruise destinations and the companies that can take you on the sailing adventure of a lifetime.

Whole wheat beats white bread sales for the first time.

An ad of President Obama selling chicken at a Whole Foods is perceived as racist.

Why is a soap company so heavily involved in a food labeling initiative? Knowing a bit about the activist history of the brand explains why.

Full moons can disturb your sleep, but it's the lunar cycle that's to blame, not the light.

Exercise has been proven to help those with anxiety issues.

Beware the downward dog, warns E. W. Jackson, the Virginia Republican party’s nominee for lieutenant governor.

From the common Cobra Pose to the complex Horse Pose, here are 20 animal asanas.

For a smooth transition between the seasons, try these cleansing asanas.

Sometimes movements that are barely noticeable can have the most profound effect, as these simple concepts show.

Quite a few poses take their names from wildlife, and there's an interesting reason why that's so.

Actor and environmentalist says President stood up to Big Oil by delaying project and calling for more environmental reviews.

Comedian describes the litany of health issues claimed by people living near wind turbines - which includes, of all things, herpes.

From the ornate opera houses in Paris and Milan to modern ones in Sydney and China, here are 19 examples of wondrous opera houses around the world.

An 18-year-old pizza delivery driver surprises a family in Detroit by playing piano for them.

Check out this video of NYC's first prefab residential building coming to life over a 4-week span in Manhattan's Inwood section.

Join us as we travel from Spain to Sweden to Sonoma County, Calif. for a look at 13 pint-sized dwellings that amazed, inspired and intrigued us in 2013.

The flashy and fancy new breed of ice fishing shacks are extravagant enough to make grandpa drop his hand auger in disbelief.

The concentration of greenhouse gases in the atmosphere hit a record high in 2011, the United Nations' World Meteorological Organization (WMO) reported Tuesday,

Seafloor-dwelling bacteria may prevent methane from reaching the atmosphere by eating it up.

Researchers have created a laser powerful enough to detect minute concentrations of gases in the atmosphere or in your mouth.

Duct tape is the absolute darling of the do-it-yourself set; here are some novel ways to put it to use.

There's less paper in need of binding these day, so put this simple contraption to work with these clever applications.

Bulldog rides zipline to Costa Rican treehouse home

It's time to cultivate a true appreciation for what we have.

As the Senate votes to give the FDA more power, read what those in the know are saying about it.

Stephen Colbert cuts through the “locavore flim flam” to find out what is at the heart of Michael Pollan’s latest book.

If solar panels are out of your realm of possibility, you still have alternatives to coal and other fossil fuels.

The heat from the sun heats up metal oxides that in turn release oxygen atoms that mingle with steam. Hydrogen molecules can then be captured and stored.

In the documentary "One Big Home," carpenter Thomas Bena goes behind the scenes to explores the trophy homes and "starter castles" of Martha's Vineyard.

From musicals to thrillers, there's more than a few flicks out there where the solar eclipse has a starring role.