Did you know that rounder leaves have greater daily light interception and carbon gain? Here's how and why plants change the shape of their leaves.

This middle-of-nowhere cave may have never been seen by humans.

The Green Scissors 2010 report shines the spotlight on government spending that is both wasteful and harmful to the environment.

When the 43 NASCAR drivers start their engines for Sunday's Daytona 500, they will be doing so for the second year with American ethanol-blended fuel in their g

An ethical travel operator in Britain denounces carbon offsetting, but are ‘holidays closer to home’ a real solution?

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

Morieka Johnson can help you maximize those trips to school, tae kwon do, gymnastics, soccer ...

Avis acquires zipcar, but what does it really mean?

Public transit has long been undervalued as a mobility option. Thanks to new technologies and new ways of living, that's changing.

As millennials turn away from driving and car ownership, will college students finally stop keeping cars on campus?

Just ask Jenna and Guillaume, who quit their 9-to-5 jobs to pursue their dream of touring North America in a custom-built tiny house.

The Passive House Institute and the Passive House Institute US are making news this week as standards change and they diverge further.

Sky City was supposed to be 220 stories and this building was supposed to be 97 stories; but there's more to building than just technical innovation.

From the emphasis on nature to the secret location aspect, there's a lot to like about this off-grid lodging concept from Belgium.

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

Eelgrass is thriving again, thanks to the help of a sea otter rehabilitation program.

The Sisters of the Monastery of the Dominican of Order have cared for the rare salamanders for 150 years.

The 2019 Saving Endangered Species Youth Art Contest is open to children in grades K-12.

England is poised to introduce a sweeping ban on the import of endangered animal parts, including those from "trophy" kills.

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

Have a stocking to stuff before December 25? Consider these useful and beautiful gifts — most eco-friendly and/or from small designers — for $25 and under.

Here's what to give and what to avoid for the holidays or any time of year.

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

A new USS Destroyer class, the DGG 51, boasts a hybrid-electric engine to conserve fuel on the high seas.

How a social networking site beat the major media on a major environmental story.

Are think tanks actually thinking or are they merely pawns of a bigger agenda? A recent study has a fascinating answer.

In 1994, 12.9 percent of strokes occurred in adults between ages 20 and 55, whereas in 2005, 18.6 percent of strokes occurred in this age group, according to th

On the heels of a failed COP15, one story reminds me of the importance of media in the fight to save our planet.

Energy efficiency efforts are a highlight of the company’s 2011 Corporate Responsibility Report.

There are a number of reasons our houses are getting bigger, and it's a real problem.

MNN exclusive: He's driven an electric RAV4 (powered by the sun) for more than eight years. Now, the actor-activist comes to MNN to talk about its new iteration

In commemoration of National Energy Action Month, our friends at Cree share an infographic highlighting the energy-saving prowess of LED lighting.

LEDs, photovoltaic arrays and motion sensors are helping cinemas save money while lessening their impact on the planet.

Cree makes a game-changing jump into consumer lighting with affordable LED bulbs that resemble the energy-hogging incandescents of yesteryear.

LEDs saved about 71 trillion British thermal units, equivalent to an annual energy cost savings of about $675 million!

What energy efficient outdoor lighting options are there? From high-tech to just plain tiki, you've got plenty of options for illuminating the outdoors.

In manufacturing, 'flat' has long been synonymous with 'low-cost' but can this also be applied to consumer LED bulbs? The 2D-Light gives it a go.

Actor Ian Somerhalder sings the praises of an innovative new light bulb.

With its latest consumer release, constantly innovating LED heavyweight Cree hits the under-$10 mark.

From jewelry and shoes to full-length gowns, 3-D printing may be the future of fashion.

Writer, media entrepreneur, environmentalist, and personal trainer Jeffrey Davis wants to make going green accessible for all.

David and Morgan Surkin run the PortSports Social Club, a recreational sports and events club that puts as much emphasis on helping nonprofit organizations as i

Author and GMO expert Jeffrey Smith shares his advice on how to make the best food choices when you're not the one doing the cooking.

Makower, one of the most respected voices in green business, talks about greener corporations, what the government could be doing to foster more environmentally

Will Kindles save the rainforest? Now that Amazon’s debuted its new $359 Kindle, an e-reader available Feb. 24, e-reader and e-book marketers alike are busy b

After breaking up a fight between two dogs, Arizona mother Laura Toone needed medical attention.

The student-designed mobile game Galactickitties lets you save space-flying felines and benefit the ASPCA too.

These apps work in conjunction with store sales and printed coupons to help you make the most out of your holiday grocery budget.

Talk about blowing things way out of proportion.

It is one thing to go cashless, and it is altogether another thing to have no money.