One way to keep kids healthy is to give them light, air, and openness.

Why now, more than ever, all new building should be Passive House.

Toronto project pushes every TreeHugger button

Compact but comfortable, this small home features clever small space design ideas and uses coffee grounds as fuel.

Talk about creative and adaptive reuse!

Every year, people go crazy buying coffee and tossing the cups, in hopes of winning a prize. It's a ludicrously antiquated model.

No more than six cups, new research says.

Travellers can take a reusable cup and drop it off at a 'cup check-in point' before boarding a flight.

A curious Norwegian initiative is connecting people in coffee shops who want to chat.

But some thoughts on why they should...

We've long known that sea level rise caused by global warming would threaten communities along the coasts, but a new study puts a startling figure on the potential damage. Meanwhile, the Hurricane Sandy Task Force releases a report.

Lets give a high five to these scientists who show that shaking hands is a filthy idea.

President Obama talks about the need for climate action in the state where he recently green-lighted off-shore drilling.

I am pickier, stingier... and much happier.

Better yet, Citizenne Style's tips don't require you to make any new online purchases.

Daniel Herridges of Strong Towns says, "If your goal is to promote public safety, design for the humans you have, not the ones you wish you had."

Analysts say people are chasing affordability.

NACTO lays out a vision for how autonomous vehicles, and technology more broadly, can work in service of safe, sustainable, equitable, vibrant cities.

Why can't we do this in North America?

Transportation has a much bigger impact on urban design than we think.

Apparently, policy is more important than place.

The parts of New York City with the lowest density have the highest rate of COVID-19 infection.

It is not just a choice between tall and sprawl.

Sales of bar soap had been sadly slipping, but now shoppers are wising up to its many benefits.

Because we don't all need to look like Barbie dolls all the time.

The United States lags behind more than 40 nations in banning or restricting chemicals for safety reasons.

This is serious surgery with long-term implications. We need to stop treating it so lightly.

New research reveals that the active ingredient in whitening products can damage the layer beneath the tooth's enamel.

It's bad for the clothes, your health, and the planet. There is no good reason to use it.

Years of marketing 'shame' to women led to the health and pollution crises we currently face.

These questionable additives are found in nearly half of all foods marketed to kids.

A new study shows it's even higher for black women and frequent hair-dyers.

Demand for plant-based protein is driving rapid growth, while crops like corn and soy stagnate.

A new survey finds that young people expect bugs to be a normal part of our diets within a decade.

The environment minister stated that post-Brexit trade deals will not allow chlorine-washed chicken or hormone-treated beef.

The idea is that it will reduce animal suffering, but it's more complicated than that.

Teams operating in remote sites on military or humanitarian missions can be stalled by broken equipment. They could soon be turning their own wastes into raw materials for 3D printing parts needed to get their job done.

Rethinking hospitality in the context of less is more

Climate change winners and losers assessed in the wake of a hot summer in Germany

It is estimated that one worker dies every 15 seconds from toxic exposures at work

The University of Central Florida is selling experimental Martian dirt, for $20/kg plus shipping. Or use their open source recipe to make your own.

William Nordhaus und Paul Romer

Freshwater shellfish serve as recording devices for fracking wastewater contamination.

Coal for Christmas, but not for being naughty. Germany commemorates the end of an era as the last black coal mine closes.

George's species fell victim to cannibal snails introduced to combat African snails, one of Earth's worst invasive species

German research on trendy craft brews proves how to optimize the craft beer experience

This study provides shocking statistics on unsafe motorist behavior, but aims to give urban planners new tools for safer shared roads

The upfront carbon emissions from replacing existing buildings now are as big as operating emissions. We have to stop this now.

Digital photography has made us lose the wretched chemicals and excess paper of the Polaroid era. So if you want to save a summer memory, you can do it in organic chocolate.

The natural chemicals in common foods and beverages can be turned into a useful antibacterial coating