This ad from the flu pandemic of 101 years ago has held up well.

Schools are closing classrooms and going online all over the world. This may be as much of an opportunity as it is a crisis.

We've lived through crises before, with a bit of help from inspiring or hectoring posters.

In the last few years ecotourism has grown from a buzzword to a trend, to full-blown industry. Whether travelers are looking for a rugged adventure or refined luxury, planet-conscious operators have sprung up to satisfy

You would think that attending a conference on sustainable tourism in Costa Rica would be a bit bland: yes, they're very green, we know. But just because this Central

Although activities that mess with local ecosystems to let humans experience nature usually seem intrusive, looking at the canopy face to face while slowly traveling in an aerial tram in the Costa Rican rainforest is a fairly

A venue which showcases and sells 100% locally produced design and artisan items while educating about sustainability and fair trade in San Jose, Costa Rica.

Has the Costa Rica Foreign Minister really just suggested that the Sea Shepherd founder might voluntarily go to Costa Rica to face trial?

Two ships of shark fin poachers have been stopped in the past two weeks, influenced by renewed government focus on the issue due to Paul Watson's case in Germany.

Exceptions will be made for subsistence hunting and fishing.

A couple weeks ago, Jairo Mora Sandoval, a 26-year-old conservationist, was kidnapped by sea turtle poachers in Costa Rica. He was bound, beaten, and shot in the head. His body was found on the beach the next day.

Thank you to all the generous donors!

When you create a law to regulate something, there's always the danger that people will drive a truck through the loopholes, adhering to the letter of the law but not its spirit.

One way to guarantee a view and to tread lightly is to build high in the sky.

A new report ranks countries by their green investments, and also compares performance to our perceptions.

Prices have fallen 12% thanks to this switch to renewables.

Taking pieces of "dead" nature, this artist transmutes them into delightful, living works of glass and gold leaf.

When two male Alston's singing mice meet, they sing an operatic duet that researchers say offers clues about our own speech.

"Can we afford to take action?" just became "Can we afford not to?"

He makes the case that it is better to have magnificent public parks than big private backyards.

These people know a thing or two about money. And they say it's INACTION that's going to cost us.

The sci-fi show pulls no punches when it comes to humanity's complicated relationship with work and nature.

Someone recently told me it suggests indigenous peoples are primitive.

British retailers brace for "unbelievably bad" profits this year. Can climate change be blamed?

Commonly thought to be a byproduct of economic distress, a new report suggest that dollar stores are a cause of it.

Giving out money revealed something that flew in the face of a common American philosophy.

Now if only he can keep his job in the fall election.

Everyone is excited about plant-based meat substitutes, it seems.

We live in his world of conspicuous waste.

Are we about to have a "Minsky Moment"?

Actors Emma Thompson and Michelle Thrush are traveling with their daughters to the North Pole, as part of an Greenpeace campaign to create an international sanctuary in the Arctic.

Activists risk arrest in an effort to prevent slow oil drilling exploration in the Arctic.

Today, Shell announced it will abandon exploratory drilling off the coast of Alaska.

Take a breathtaking 9-minute journey with wildlife photographer Vincent Munier through the beautifully bleak frozen North, you won’t be sorry.

This week, delegates are meeting to determine the fate of a proposal to protect part of the Arctic. This pianist's moving performance urges people to show their support.

They call it a "one-off" but it is the shape of things to come.

The laser-outfitted satellite will be able to pick up shifts in the ice on a very small scale.

Svalbard's wild reindeer are surviving warmer winters by foraging on, yes, seaweed.

Some 60 polar bears are loitering near Ryrkaipy in Chukotka Russia, a new occurrence which is prompting some to suggest permanent evacuation.

How do you make good design accessible to people with small spaces and small budgets?

A lot of our history is being lost so that people can get that popular look.

This is, whether we like it or not, the future of furniture design.

The LightCycle follows our circadian rhythms via your phone and GPS.

Every year we go look for the latest in sustainable design. Every year the post gets shorter.

TreeHugger writers have a lot of experience with this.

Pigeons live large in these big artworks that celebrate the remarkable qualities of these overlooked birds.

Blank city walls are huge canvases for this artist transforming our perception of ordinary buildings.

"We are working on the design of communities and begin with what we call the Essay of Clues. We look at things like the sun, the wind, the water, the biological history and the culture of the site. Then we imagine that we are birds that evolved for that

Amid the over-upholstered and garishly gilded furniture at the Istanbul Decoration and Design Fair hid some ingenious gems -- designers working with recycled and alternative materials and creating multi-purpose furniture for small spaces.

Apple remains our culture's most lauded example of great design. But could it be that the company considered to have reached the pinnacle of design is, in fact, an impostor? The definition of good design is changing. It used