There are a number of reasons the fight for Keystone XL is likely to drag on.

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

But do they have the courage to do it right?

Download it while you can.

The TreeHugger view is that hey, we like trees, and parks are precious, especially when they are designed by the likes of Frederick Law Olmsted.

In London: get rid of cars. In New York: get rid of people.

Shipping containers are the base for an instant "lush urban oasis."

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.

Much depends on how you define "safe"

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

Particulate pollution is killing us, and we can't pretend we can just open a window.

Henry Grabar writes a really wonderful article that shows how "a better world is possible."

I used to say that Vision Zero here was a joke, but now it is, in fact a tragedy.

The hot real estate plays of the next decade will be in the rust belt along the Great Lakes.

The Cultural Landscape Foundation introduces a prize that rivals architecture's Pritzker or Stirling.

It's not just about how we build and how we get around; it's also what we eat and wear and buy.

A look back at the tweets that changed the way I think about sustainable design.

Why can't we do this in North America?

We'll always have Paris.

The Guardian Cities closes doors, goes out with a bang.

They say it's the new megatrend: customers without cars.

Henning Larsen's design for Fælledby is "a model for sustainable living."

A new report describes this trend, happening in suburbs and small towns near successful big cities.

They will also likely offer a new definition of 'sustainable design'.

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.

We really have to change the way we use our cities.

Urbanists are rethinking what's important about our cities in view of the pandemic.

In many cities, politicians are looking at the world through their windshields.

What can we do to save our streets? Decentralize everything.

It is not just a choice between tall and sprawl.

Vilnius has an idea that would work in a lot of places.

Obviously, you can't literally grow a century-old forest in just a decade, but by mimicking nature's forest-building process, it's possible to kickstart your own mini-forest.

Harvesting a large crisp head of lettuce from the garden is a wonderful thing, but for faster yields and longer harvests, a cut and come again lettuce bed can put salad on your plate all season long.

The beauty industry has a long way to go, but these companies prove that change is in the air.

Supple and glowing is preferable to chapped and flaky.

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

It is"7-free," which means it does not contain 7 of the harshest chemicals commonly used in nail polishes.

After years of no-shampoo approaches, I found a way to clean my hair that actually works for me.

It all comes down to using less of everything.

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

When zero waste lifestyle bloggers debate their go-to beauty products, these are the ones that keep coming up.

New products for 'urban skin' are booming, but do they actually work?

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

Both offer a 'dream version' of yourself, but one is far trendier than the other.

When it comes to a clean and green beauty routine, less is more.

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.