We laughed, we cried, but more important, we picked the recycling-loving winners of Etsy's Handmade Halloween Costume Contest.

This super-insulated home is built to be earthquake-resistant too.

This is a very good idea that all of North America should consider.

Jordan Parnass Digital Architecture has designed a revolutionary building for an industry that needs a revolution.

We have been asking that question for a while and it keeps coming up.

It may lead to as many as 20,000 passive houses being built over the next five years.

A quantity surveyor deals with construction costs for a living, and shows how it's done.

Passivhaus or Passive House does not mean they are just houses.

If you can make it there, you'll make it anywhere.

The wood and plastics industry prefers Green Globes and is designing laws around it. Paging Jerry Yudelson.

Architects and builders take to the streets for the Extinction Rebellion, get arrested.

But Passive House is so expensive! How can you build housing for the homeless and low income families this way?

Architect Jonathan Kearns shows that you can have it all.

A lot of the permaculture design principles make just as much sense for buildings.

We've written about e-paper here and while the idea seems nifty, it's hard not to think that improving online readers might be the best option rather than adding another electronic gadget to the overladen waste stream. But in a new study from the

Their priorities certainly are different than ours are.

Indwell and Invizij Architects are doing incredible work, raising the bar for housing people in need.

ZH architects faced a lot of serious challenges here, and came up with innovative solutions.

Phoenix Haus brings European prefab technology to the midwest

Two hundred evangelical scientists recently wrote a letter to Congress making the religious case for passing climate change legislation.

That's compared to 624 in the whole of 2017...

There is not much that can go wrong in such a simple concept. That's really smart.

Temperatures in January dropped to -24°F and an air source heat pump kept it comfy and cozy.

We have never actually explained this in one post on TreeHugger. I am going to try.

How my thinking has evolved in the last decade

Says the United Nations Department of Economic and Social Affairs.

Researchers gathered data over two years by following 70 different dogs, from 37 different breeds, as they... defecated and urinated.

Finally one state is putting a stop to the "exfoliocean." Hopefully others will follow its lead, forcing companies to adopt eco-friendly alternatives.

Boston is getting a "CLT Cellular Passive House Demonstration Project" that pushes every TreeHugger button.

It's the first conference of the North American Passive House Network and it sounds like it was a lot of fun.

It's a mix of good design, a tough standard and sophisticated engineering.

GO Logic have always designed beautiful homes. This was the next Go Logical step.

Is it possible to keep Kosher and still keep a vegan diet?

Can a recirculating fan deliver the indoor air quality we should demand?

Although the term “Passive House” might seem to refer to single family homes, these concepts can be applied to all kinds of buildings.

Hint: it's not the one with the solar panels on the front.

An ambitious couple set out to travel from Washington to the Alaskan Arctic, off the beaten track and under their own power.

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

This just pushes every TreeHugger button.

House on the Highlands wins the rural category in the UK Passivhaus Trust Awards.

The judges got it right this time.

Let's hope that unlike the Oscars, they make the right choices and open the right envelopes.

The most prestigious prize in British architecture is given to the solidly green project rather than the flash in the pan.

They keep piling it on Florida's beaches, but they can't keep it up.

Because “the pursuit of speed is a moral imperative.”

If it weren't so subsidized, it would be a lot more expensive, and people might fly a lot less.

Sure, it'll only have nine seats. But the low cost carrier expects larger electric planes in service by 2027.

Most glass buildings are a problem, but just banning them is the wrong solution.

An advertising gimmick that gives a whole new meaning to the words "training shoes."

These are the daily habits I've refined over the years and hope to see them doing someday.