On National Walking Day, a look at how putting cars first kills people who walk and drive.

They are going to be autonomous taxis. Is this a good idea?

It may be decades before AVs are good enough, so in the meantime everyone will have to keep out of their way.

They are going to be a lot more than just cars that drive themselves.

It's been a while since a good poo-power story has come down the pipe, but here's an interesting one: Massachusetts-based biofuels company Qteros and wastewater recyclers Applied Clean Tech have announced that they

The 107 million tons of grain that went to U.S. ethanol distilleries in 2009 was enough to feed 330 million people for one year at average world consumption levels. More than a quarter of the total U.S. grain crop was turned into ethanol to fuel cars

After several decades of Lrapid rise in world grain yields, it is now becoming more difficult to raise land productivity fast enough to keep up with the demands of a growing, increasingly affluent, population.

The first large-scale commercial operation to produce cellulosic ethanol (the kind of ethanol made not from corn or other grown crops, but from organic waste) in the US just got major backing from the oil industry, and will be online in 2013. The New

Is the conventional wisdom that we need not worry about tailpipe emissions in biofuel-powered vehicles, because the plants had been absorbing carbon while growing, grossly misguided?

No more pepperoni, salami, bacon, or ham will be offered on school menus.

The UK organization wants schools to incorporate that time into their daily curriculum.

This competition for the best environmental photography never fails to be interesting and professional.

The challenge is to re-evaluate the materials we consume and the way we manufacture products so as to cut down on waste.

Global Citizen changed the lyrics to include a strong anti-food waste message, and the result is both entertaining and informative.

This could be why so many people ignore global warming.

There are reasonable limits on what people can do on their properties. But this goes too far.

This is not your usual trading site; it is much more of a community.

There are 1.2 million real ones, but most of it is all about the show.

At Woodrise 2019, Katerra CEO Michael Marks wows the wood world.

Also called "carbon lock-in," it's about time.

Alice + Whittles makes use of high-quality materials that would otherwise go to waste.

"If you don't visit quiet, the quiet will disappear."

There are a lot of good reasons to get rid of that old plug.

A new lightweight thermoelectric generator has been developed at NC State, which may be able to power small health sensors or other small wearable devices.

Everybody should be doing this, planning for repairability from day one.

Bitcoin mining uses so much power that it may well turn into an environmental disaster.

Drones can continually monitor active volcanoes to help with advanced warnings of eruptions.

Aiming to raise awareness about e-waste recycling, this photographer used 4,100 pounds of e-waste in these futuristic scenes.

Tokyo 2020's organizing committee will transform old smartphones, laptops, and digital cameras into a true treasure.

The Michigan basin has extensive shale gas reserves, yet it is not a political issue for Democrats or Republicans. Why?

Researchers propose using the vibrations of the heart to keep pacemakers going, eliminating the need to replace batteries.

The evaluation report three years after Double Up Food Bucks started giving incentives to SNAP (formerly food stamp) recipients

When cars first began appearing in the late 19th century, some cities moved to ban them -- but there is still one place in the US that has yet to change its mind.

Raking Without the Cussing Sometimes the greenest products are those not marketed as green at all – take the humble rake for instance. As a TreeHugger I already know that leaf blowers are the scourge of humanity (and don’t even get me started on leaf

Hinduism is the oldest

After reviewing the major religions of the world's stances on the environment, it seems pretty clear to me that there are more commonalities than differences. In the realm of metaphysics there are genuine and significant

Some nice symbolism here... WWF-Nepal reports that it has just completed its target for 2011 of planted 108,000 trees in the Sacred Garden of Lumbini, where the Buddha was born roughly 2,500 years ago. Over the next ten years the

photo: Rebecca Wilson/CC BY Editors note: The following guest post is by Sadhvi Bhagawati Saraswati an American-born renunciate at Parmarth Niketan ashram in Rishikesh, India (full bio below). While this post may be a bit broader than other items in the

Globally, religious groups own 5-10% of the world's forests and influence much more.

Watching this video on Sacred Economics may be the best 12 minutes and 18 seconds you spend today.

In a compromise with environmentalists, the energy giant is committing some significant resources to clean tech.

Could it be that more efficient lighting means less coal being dug to power it?

It turns out leaving the EU is quite hard. Who knew?

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

More on why the 626 environmental groups demanding action on climate change shouldn't be doctrinaire.

The disks are coated with zinc oxide nanorods that break apart organic molecules in sewage.

By reclaiming precious metals from its 'urban mine' of obsolete electronics, Japan may be able to produce the medals for the 2020 Tokyo Olympics from recycled materials.

Picture this: In 2016 the world generated enough e-waste to fill a line of 18-wheelers from New York to Bangkok and back.

If you want to attract good people these days you have to give them a nice place to work.

Using the bones of old-world infrastructure to build new-world infrastructure.