COTAP will focus its carbon offsetting projects in impoverished countries.

Type in your destination, and Cost2drive figures out your gas costs and CO2 emissions.

Personal car-sharing spreads in the U.S., from California to Oregon and, very soon, to a neighborhood near you. The concept of hiring out your own vehicle has p

Apply to the 30-Day Electric Bike Challenge and you could be selected to receive an e-bike for a month in exchange for swearing off the use of your car.

What is Uber anyway? Is it a taxi service or as it claims, a technology platform, or something else altogether?

Is this the start of a trend in which automakers make money retrofitting older cars?

Running 2 groundbreaking companies at the same time, Musk succeeds by putting himself on the line more than anyone else, says author Ashlee Vance.

The big Japanese auto show is all about plug-in and hydrogen cars — and some even drive themselves.

EV prices are falling, range is rising, and there's free fuel to sweeten the pot.

The Detroit and New York auto shows may have the new car introductions, but Washington has the politicians.

Electric cars are really shooting off into the stratosphere, and it’s all Elon Musk can do to keep up.

Reebook partners with architecture firm Gensler for 'Get Pumped,' a conceptual scheme in which health-conscious drivers rule the roads.

There are many different types of staircases that can make your home a more efficient, safer and even a more attractive place.

Environmentalist Peter Bahouth shares the inspiration behind Atlanta's most leafy and lovely Airbnb listing.

Beauty abounds in the weather-warped details of Dwell Development's latest net-zero residence.

In a once iffy stretch of East Oakland, Tassafaronga Village stands as a model of affordable green housing done right.

Heatherwick Studio's mighty pretty design for Maggie's Centre Yorkshire resembles a cluster of massive potted plants.

It's a little bit Ewokian, a little bit New Urbanist and a whole lot intriguing.

Getaway provides a woodsy, off-grid respite from the concrete jungle.

The man-made foothills are most definitely alive in Cupertino.

A solar-powered home that can charge a car is one thing. But what if power flowed the other way, as well?

At 208-square-feet, Kasita smart apartments are roughly the size of 6 garbage receptacles.

Hydraulics give a British backyard potting shed a lift when needed.

From the man who brought you the giant tetrahedron on 57th Street...

The treehouse-esque bunkhouses of Whitetail Woods Regional Park score big at the AIA Housing Awards.

Berlin startup Cabin Spacey has a clever idea for the city's unused rooftops.

Tiny houses have become the darlings of budget-minded minimalists, and Ryan Mitchell's book, "Tiny Houses Built with Recycled Materials," explores them.

Situated next to the High Line, Solar Carve Tower is specifically designed not to bogart air and natural light from its neighbors.

This biophilic home owned by Gennaro Brooks-Church, founder of Eco Brooklyn Living Walls, is so green it boasts a turtle sanctuary.

It was one of President Obama's signature stimulus programs, and it looked like a roaring success — at the time.

Finn the conservation dog was trained to sniff out pesky rabbits, and in the process he protect native plants and threatened Humboldt penguins.

When people see animals everywhere in pop culture, they assume they're everywhere in real life.

Habitat loss and climate change have pushed the antechinus, a marsupial that looks like a small shrew, to the brink. And their sex lives don't help.

The mountain gorilla population is rebounding in the Virunga Volcanoes Region, according to census results announced by the African Wildlife Foundation.

International Union for Conservation of Nature has updated its Red List, and the news isn't good for Australia's reptiles.

Native only to Madagascar, 105 lemurs species have been evaluated as critically endangered, endangered or vulnerable by the IUCN.

Rescuers in Cape Cod are racing to save wave after wave of "cold-stunned" sea turtles.

The clones come from trees that were larger than any alive today.

Scientists plan to flood the black market with cheap fake rhino horns to disrupt the poaching market.

For my final last minute-ish holiday stocking stuffer pick, a bamboo charcoal- and goat milk-based skincare bar from the Fabulous Beekman Boys.

Give the real estate-fixated college graduate in your life a well-designed, practical gift that will be put to good use in their first post-grad abode.

With college grad gifting season upon us, here's a handful of useful, unique and starter apartment-friendly household items.

9 models to consider once you know how you'll be using this versatile kitchen tool.

In 1911, the Society for the Prevention Useless Giving (SPUG) began a movement against useless Christmas gifts. It's time for a comeback.

A floating sheet of pumice could bring an infusion of life to Australia's Great Barrier Reef.

Option packages and other 'forced' features increase the base price of many vehicles, balancing out the environmental value, group says.

Vanessa has a beef with meat, again.

Overall, 90 percent of the ground turkey that the magazine examined had one or more of the five bacteria they tested for.

From the Associated Press

Offshore wind power poses no major environmental or socioeconomic risks for the U.S. Mid-Atlantic coast, a new Interior Department study reports.