Supermodel once again named Global Earth Hour Ambassador in preparation for the lights-out moment on March 31.

Kenaf, the carbon-sequestering monster plant, provides food, shelter and carbon credits.

Polio could be wiped out by 2018, but Gates says it will require investment and hard work.

Olivine is a miracle green rock that absorbs carbon dioxide naturally from the air.

The city fleet will have 425 Leafs, Volts and Energis on the road by early next year.

BMW Vision Next 100

The British vacuum cleaner kingpin will invest nearly $3B in developing an electric vehicle by 2020.

A ban on gas and diesel cars is the latest in Paris Mayor Anne Hidalgo's ongoing crackdown on air pollution.

Rescuers spent months nursing a paralyzed leopard until the day he stood on his own paws.

Air conditioners have made architects lazy, and we've forgotten how to design houses that might work without it.

Despite its petite size, Bi(h)OME carves out ample room for urban wildlife.

James Furzer's simple design is still situated on the streets — yet lifted slightly above them.

Don't want to live in it anymore? Just covert it into a drive-through shaved ice stand.

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

As its name implies, Scavenger Studio by Eerkes Architects was constructed from materials plucked from soon-to-be-demolished homes.

Milan, Italy's smoggy second largest city, envisions a future that's cooler, cleaner and swathed in green.

A 'clunker' is a vehicle reaching less than 18 mpg. Check out the top 10 clunkiest clunkers here.

guns and classic car emotion

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

Many well-known bird species are in danger of going extinct, according to the State of the World’s Birds 2018 report.

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

The newly identified species may already be at risk of extinction due to habitat loss, researchers report.

The rediscovery of this hibiscus relative in Hawaii illustrates the growing importance of drones in wildlife conservation.

Australia, on track to eliminate 2 million feral cats by 2020, bans outdoor cats.

Nonprofit, which monitors the health and safety of animals in the entertainment industry, calls the expose a distortion of the truth.

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.

You’ll refer to this guide that’s printed on biodegradable fabric with non-toxic ink almost every time you need to convert a recipe.

New research finds mean spiders know what it takes to survive extreme weather.

AT&T has reached a new milestone with its ever-expanding green fleet – the deployment of its 2,000th CNG vehicle.

AT&T's growing clean fleet allowed the company to avoid purchasing one million gallons of petroleum-based fuel in 2010.

In an effort to reduce its carbon footprint, UPS is working with Utilimaster and Isuzu to test a new prototype delivery vehicle.

Ford revealed the new, more fuel-efficient 2013 Ford Escape at the L.A. Auto Show.

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

Cash for Clunkers tore through our nation like a drag racer, long before anybody could figure out if it made sense. But its image is already locked in the popul

As the Senate takes up the climate bill (maybe), activists need to point Americans away from lies and despair, toward inspiration and opportunity.

While industry apologists peddle the idea that newspapers are doing just fine, the new media world is leaving them behind.

When people like John Kerry back nuclear subsidies, green activists find themselves in a difficult position.

A spurious debate over purloined e-mails overshadows evidence that climate change is worse than we thought.

When all reason says we ought to be backing more transportation options, the media is still obsessed with automobiles.

Last week’s readers help me come up with five more juicy ones to chew on.

Ah, the contradictions of corporations trying to look presentable at the green party. Here are 5 to consider.

Kids present a DVD of videos, songs, speeches and presentations on climate change to world leaders in Copenhagen.

Sarah Palin trades barbs with California Gov. Arnold Schwarzenegger after he criticized her anti-science stance on global warming.

Global warming science is under attack as never before, and these raiders are in the vanguard.

Video: President Obama addresses the leaders of nations attending the climate change conference in Copenhagen, urging countries to step up before it's too late.

A hilarious accounting of 'Climategate' and why universities need to professional PR help.

As governments struggle to solve the climate change crisis, who's stepping up?

It's no substitute for simply getting rid of coal, but geo-engineering just may be our planet's Hail Mary pass.

Lexus-sponsored 'debate' between climate denier Phelim McAleer and green girl Simran Sethi yields important lessons for an ailing climate movement... especially