Nic Darling is part of Postgreen Homes, builder of the 100K house and others that I have raved about; Postgreen is a different kind of developer, working in gritty urban parts of Philadelphia, doing smaller, more affordable

There is a certain irony in the fact that some of the best biking in the U.S. is in an area where people have rejected the modern world -- including bikes (for those of the Old Order).

A new public space in Philadelphia helps make the city more human-scale and increase quality of life for people who work or pass through the area.

Going for LEED Platinum in an affordable townhouse with clean modern design

Another model for the development industry: Smart young people using their own money

Are solar-powered trash cans a fuel-saving, money-saving way to keep the streets clean? Or are they worse than regular trash cans?

Partnering with a forest conservation non-profit to plant a tree for every watch purchased, Analog Watch Co. creates chic timepieces out of recycled wood.

One more city joins the bike sharing club, providing its citizens with a great, healthy, and green way to get around.

Philly has more than 2X the number of bike commuters per capita of NYC.

The mayor has portrayed the controversial soda tax as a great source of revenue with which to do fabulous things for the city, rather than a benefit for public health.

They are as gutsy and gritty as ever.

The Timber Towers Project seeks to demonstrate the viability of a mass timber high-rise.

A great demonstration of how to develop tiny lots.

We have gone beyond gentrification and are now talking about Pikketyfication, aristocratization and plutocratification.

There are all kinds of distracted and compromised people in our roads. Some of them cannot help it. So why are phones a problem?

This is the future of building, and it works. Get used to it.

In Toronto and New York, Vision Zero is just talk. It's time for action.

It makes a lot of sense in a country with no workers and five other permanent stadia.

A contemporary design for an earthquake-resistant, modular home.

This is shipping container architecture that makes sense.

This cozy and compact dwelling out of Oregon packs one bed, one bathroom, a kitchen and porch.

Another look at a controversial housing project.

Drivers used to get away with murder; new legislation is much stronger.

It's partially built out of Cross Laminated Timber; it "immerses students in this relatively new product."

Populist leaders are more interested in cutting the price of gas than they are in stopping climate change.

It's being killed the name of "convenience."

220 years ago a lot of people wanted to move to Canada. Here is how they were welcomed.

One side effect of gold prices continuing to rise (now at a new record of $1500/ounce): Deforestation in parts of the Peruvian Amazon have increased up to 600% since 2003.

Pay attention, as this sort of thing could hit other mountainous areas that are dependent on glaciers for their water supply.

Biologists believe that oil companies are to blame for the recent dolphin deaths.

Peru continues to approve oil and gas projects despite previous exploration leading to the death of half the Nahua tribe.

Hundreds of dolphins and pelicans have been found dead on beaches in Peru since February, prompting the government to issue a public health warning.

Born out of first-hand research in a Lima slum, this time and water-saving device is targeted at families that live without electricity or running water.

This innovative billboard does double duty: advertising for a university's engineering program while producing much-needed clean drinking water for local communities.

Find all your sunny-day basics made with fair-trade fabrics and natural dyes.

Created for adventurers by adventurers, this unique hotel in Peru features three sleeping pods that guests must climb up to.

Outfitted with GoPros and solar-powered GPS trackers, the crew of carrion-loving vigilantes is sniffing out illegal dumps in Lima.

From ancient trees and strange sea slugs to odd and adorable insects plus more, our most popular reader's photos of the year are a tribute to Mother Nature.

And the 15 cleanest, according to the annual ranking from Environmental Working Group.

Ice cream lovers aren't happy to learn they're licking glyphosate on hot summer days.

Our food chain can so easily be disrupted, as this example of eggs contaminated with a pesticide not approved to be anywhere near a chicken proves

"It's not just about the bees, it's about the survival of humanity"

Even the CDC recommends this botanical ingredient as comparable to DEET for repelling disease-carrying insects.

A new study provides the first biomarker-based evidence that maternal exposure to insecticides is associated with autism among their offspring.

New study says there's no safe level of exposure to organophosphates, a main ingredient in pesticides.

When four American families switched to all-organic diets for a week, the results were dramatic.

And the top 15 that are least toxic.

For example, 72 pesticides approved for use in the United States are banned or in the process of being phased out in the EU.

Just like your pet, these big cats can't resist the lure of an open cardboard cube.

Wildlife Conservation Society is treating the purloined parrots at a specially built care facility; some 900 have been released back into the wild.