Half the world now lives in cities, and by midcentury 75 percent of us will be urbanites. To make our cities sustainable, look to the 2012 TED Prize and a fasci

Want a cool way to combat expensive gas? Take your bicycle at least part of the way. (We can't all live in Portland, where bicycle commuting has become a religi

Bloomberg Rankings has released a list of bike-to-work rates in 25 major U.S. cities and Portland, Ore., came out on top. In 2010, nearly 16,000 workers biked t

What could be better than losing weight and gaining money? Here's what can happen when you take a bike for a spin.

Android and iOS users alike will benefit from a redesigned Google Maps app that will include ratings, deals and an incident reporting feature.

In the U.S., however, walking or biking to school has become less common over the last 50 years.

Robots are taking jobs from tax-paying, product-consuming human beings and a lot of people are talking about it. How will these people live?

Many older workers are already taking advantage of the flexibility and freedom of the gig economy, so the millennial habits just make sense.

Project Bike Tech offers students diverse skills and options when they leave high school.

Hobbies can boost your career confidence as long as they differ from what you do on the job.

'Sunday Scaries' are a real source of anxiety for millions of people, but they can be beaten.

Hailey Fort also grows food and is fundraising to buy coats and other supplies to help those in need.

What will happen if we pass a carbon tax or regulate carbon emissions more? Won't my bills go up?

Environmental Defense launches 'spendometer' to track anti-climate campaigning.

Only one of the Republicans is running in the 2010 midterm elections, but each is being courted for a number of reasons.

Will congress study for its final exam, or will it revert to be bad habits and hope for best?

With time ticking away, a climate bill could be in serious danger.

A New Yorker article gives a behind-the-scenes look at what led to the demise of the climate bill this summer. Here are five observations.

New Mexico senator's plan to retire creates questions for Democrats and environmentalists in 2012.

Bill Richardson says the terrorist's death gives President Obama an opportunity to tackle one of the most contentious issues in Washington.

With National Bike Month just around the corner, behold 10 cycle-centric items for around the house ranging from bowls to wall-mounted bottle openers.

The green cleaning powerhouse reintroduces its home fragrance line with a collection of spray air fresheners powered by pressurized air technology.

Money from the 2008 Farm Bill has been set aside specifically for organic farmers.

In this video, the author and real-food advocate talks about why the farm bill should matter to anyone who cares about food.

The House cut funding for food stamps out of their version of the Farm Bill that goes to the Senate next. Colbert, of course, has something to say about that.

Congress finally passed the farm bill. Here are 5 facts to start you on your way to knowing what's actually in it.

Say it ain't so, Amy Poehler.

'Bill Nye Saves the World' will dispel myths and anti-scientific rhetoric on everything from climate change to GMOs.

Fill up on food that tastes like 'freedom and rebellion and independence' in honor of Lorelai, Rory and all your favorite Stars Hollow residents.

The Science Guy is back, just in time to 'Save the World' with verifiable facts and guest stars like Alton Brown.

Bindi Irwin shares heartfelt message about her father and conservation on Nov. 15, which is now Steve Irwin Day.

A photo snapped by singer Frenchie Davis of Louis Boria knitting on the subway drew attention to his business, Brooklyn Boy Knits.

About the size of a pinky nail, the nest cups are filled with 'eggs.'

Conservation efforts are helping some large predators reclaim ancestral habitats, a new study finds.

Even subtle changes of scenery can have dramatic effects on our mental and physical health, a growing field of research suggests.

A new study looks at the co-evolutionary 'arms race' between a brood parasite and its hosts.

Amphibians are reliable indicators of changes in ecosystems and are valuable in medical research.

Earth's species are now vanishing at rates unprecedented in human history. That matters for more reasons than many people realize.

In North America alone, there is enough energy trapped beneath the Earth's surface to produce 10 times as much electricity as coal currently does.

Free coffee at Starbucks, carbon offsets and sustainable seafood are just a few examples of what businesses are doing in honor of Earth Day.

We asked Carla Hall, Mayim Bialik, Andy Richter, Izabella Miko about their Earth Day plans.

Mexican president proves himself a visionary with a sense of humor at the Cancun Climate summit.

Being called a bird brain really isn't an insult, now that scientists have uncovered just how smart these feathered friends really are.

How to get ready for a great season of watching our feathered friends!

Become an expert in knowing what birds are saying by studying these common species.

The Australian bilby is becoming more popular, and they may just take over as the country's animal representative for Easter.

Use this quick checklist in order, and you'll soon master the process of identifying a bird species.

It's the first birth spotted so far this season.

Listening to birds reveals a lot about what's happening around you, including what other wildlife is roaming nearby!

If a bird has zygodactyl feet, that means two toes point forward and two point back. This makes life easier for woodpeckers, owls, parrots and ospreys.