The pioneering site that brokers accommodation in private homes must now pay city hotel tax in San Francisco, according to a new ruling. What does this mean for collaborative consumption?

But regardless of what green initiatives they implement, tourists must be willing to change, too.

As part of an ongoing series about the Maya Ka'an community-based tourism initiative, this was my first official day in the Mayan region, and it was certainly full of adventure.

Snakes, spiders, and bats in a tight space may sound like the stuff of nightmares, but Kantemó, Mexico, is actually an incredible place to visit.

Katherine and Margaret share their tips for green travel.

There's an "epidemic" of unused vacation days in the United States. This startup wants participating companies' employees to trade them in for plan contributions, or booking flights and hotel accommodations.

I respond to a recent viral article hating on digital nomads.

Fast food is the enemy of green food, so why does an overweight America still eat so much fast food?

But assuming that lower-income citizens are content to eat cheeseburgers definitely is.

Would you go stinky for steak? By skipping 26 showers for every 4 oz hamburger you eat, you can offset the water used to produce it.

Recommendations to eat less meat for environmental reasons won’t be included in the final 2015 dietary guidelines.

It turns out that it's probably beef fat.

The report argues why a beef tax would be an effective step toward curbing greenhouse gas emissions and why we should all be paying more for climate-damaging foods.

Bigger wheels mean more stability and regular-bike feel, but it comes at a price.

Changing attitudes about cities and getting people out of cars takes a lot of work.

Buell motorcycles are fast, beautiful and expensive. How does Erik Buell's e-bike compare?

It calls for more support of bikes, walking and transit, banning ICE-powered cars sooner.

Way more people get traumatic injuries in the shower than they do on bikes, but almost nobody takes the most basic safety precautions.

We covered this subject before but I got it wrong. Peter Flax of Bicycling Magazine got it right.

The fashion designer says she doesn't "just chuck stuff into a washing machine because it's been worn."

How to waste a whole lot of technology and energy to do a very simple thing

Designer Shanan Campanaro creates lovely home decor with eco-friendly materials.

This well-crafted tiny dwelling has its own space-saving elevator bed that can go up and down with the push of a button.

UK brewer Seven Brothers has partnered with Kellogg's to use some of its less-than-perfect cereals.

At the risk of getting slammed with comments claiming that small wind turbines aren't viable, here's a look at another bladeless wind generator hoping to disrupt the wind energy industry.

That's two and a half times longer than any existing wind turbine blade and that's not all that makes it unique.

Lightweight, collapsible, and quick to deploy, this little wind generator might be a viable off-grid portable power source in places where solar isn't appropriate.

No turbine blades in sight.

We may be killing them at an abysmal rate, but these smart and social creatures seem to have a plan.

The moral of the story is: Some people are awful, some people are heroes, and baby chimps are irresistable.

Half a century ago zebras were hunted to extinction in the region, now the area is being rewilded and the zebras are leading the charge.

Never ever underestimate the intelligence of Mother Nature.

In a compelling new documentary, The Flood, Angela Bassett narrates the story of the life in one of the world's last great wildernesses.

An increase in maximum sentences for wildlife crimes are being delivered by the Republic of Congo – here's how one gang's arrest and conviction went down.

Even though there has been notable progress, at current poaching rates elephants are still in danger of becoming virtually extinct on the continent.

Before 2015, the Mozambique reserve lost many thousands of elephants due to rampant poaching – now they’ve just had a full year without any illegal deaths.

Purr, snuggle, awww, repeat.

A young Toronto-based woman is working to build a school in the Kenyan village near where she grew up.

Paul Quinn College in Dallas converted its underused football field into a working farm.

Perhaps the school should offer a course on parenting instead, so this problem is solved for the next generation.

If you love electric cars and you love rankings, this article is for you! The top 10 electric car states have been unveiled, and there are some surprises on the list.

Recycled aluminum and silver get another shot at becoming beautiful with this handmade collection, created with Japanese origami papers.

What these cars are capable of will come as no surprise to EV fans, but winning the King of the Mountain title puts another feather in the EV cap

Another good reason to move to Colorado.

This tiny house builder and architect just built himself and his wife a bigger (but still tiny) home, equipped with a space-saving elevator bed.

A new study from Deloitte predicts what we have said before: e-bikes will eat cars.

TreeHugger isn't the only place to sing the virtues of the modern composting toilet. But Fox News? Really?

A toilet is just the working end of a much larger system that can have a huge impact on society.

Urine for a surprise as Alex Wilson concludes that urine collection beats composting. I was, because they are not mutually exclusive.

Architect designs a composting toilet that is "no cost, no impact"