SMUD demonstrate that all-electric living is actually cheaper than gas.

And why not?

The machines are popping up at grocery stores in Norway.

This Montreal collective is creating an online, crowd-sourced map that will document the city's wild spaces.

One of the biggest challenges of making cities more bike friendly is that most of the road space is already "used up." Adding bike lanes means removing something. That's when a bit of perspective comes in handy.

A partnership between Moisson Montreal and the largest grocery chains in the province will continue to salvage hundreds of tons of food that would otherwise be discarded.

Well, that happened fast.

Now how about some incentives to get people out of cars?

Batteries recycled from old LEAFs run the refrigeration equipment in this all-electric truck.

BRB introduces a bunch of concept vehicles that look like a lot of fun without fossil fuels

The first Freakonomics book was a lot of fun; the second less so, as it sort of devolved into "if the scientific consensus and/or coast-hugging liberal elite are for it, we are against it" type of thing. Hence Freakonomics Watch; or perhaps it should

It's not rocket science, it's building science, and it's all here.

Look Ma! No heatsink!

It was only a few years ago that I was testing LED bulbs that cost $100 each...

From heat pumps to induction, it has never been easier to give up gas.

Baltimore residents, get ready to get in on the smart grid party. Baltimore Gas & Electric has just announced that it has filed paper with the Maryland Public Service

To many people, Jim Hart and Khalil Abusakran are heroes. When the two men from Maryland saw a deer stranded in the icy waters of the Patapsco River, they did what few others would dare. With an

When I wrote about Robert Llewellyn's solar car charging in rainy England, commenters noted that solar at home is unlikely to benefit most car drivers, as they will typically charge overnight. Situations will obviously vary

Neither jobs nor electrical stability will be sacrificed by the state's proposed plan to protect the climate by reducing emissions 25% by 2020.

Millions of Americans are applauding President Obama for naming five new National Monuments.

A new study shows that a quick look at a green roof perks you right up.

A vintage Airstream trailer gets a fresh and airy makeover with some eye-catching patterns.

Great cities know the future is renewable.

And we thought it was all about symbolism...

Living some 6,000 miles away from the Gulf of Mexico, I'm a bit embarrassed to admit that the oil spill often seems like an abstraction to me. A big, big abstraction, but still.

U.S. hospitals waste thousands of tons of medical supplies every day. DOC2DOCK collects and redistributes these supplies to match the specific needs of hospitals in the developing world.

Number of storms predicted per year during the period 1854 -- 2006 versus numbers actually observed for the Atlantic (filled diamonds). The model predictions (grey curve) have been normalized to the data. A quadratic fit to the model is shown for

There are so many missing teeth, so many vacant lots in so much of rust belt North America. We showed how Superkül took back a sketchy main street store in Toronto for their live/work space; Now Azure Magazine shows us how

Ambitious thieves spend a month torching apart a Pennsylvania bridge

Technological advancements, combined with an escalating climate crisis, suggest its time to revisit some once fanciful ideas.

It's not enough to not make things worse. Our buildings and our actions have to make things better.

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

One little trip can blow you right out of the water.

Landfill gas (LFG) isn't quite as sexy as some other alternative energy sources like wind or solar; still, TreeHugger thinks its an important part of our collective renewable energy portfolio. Plus, it's cool that landfills (and the stuff that fills

The cost of electricity is going up (both in dollars and in environmental and health impacts). Here are some tips for reducing your costs and impacts.

Minimizing your footprint is nice. Maximising your impact is better.

Satisfying the world’s unmet need for contraception would dramatically reduce population growth, easing pressure on natural resources.

Opposition from the G77 Nations and the Vatican led to the removal of the words 'reproductive rights' from the Rio+20 text, leaving in 'acceptable modern methods of family planning'.

How to slow it? Access to voluntary family planning for all women. It more than pays for itself, reducing unwanted pregnancies, abortions, unplanned births... And helps reduce humanity's environmental impact.

Allison Arieff reviews the Buckminster Fuller retrospective at the Whitney. She writes "His brain was constantly consumed with the serious issues of his day —

The recycling industry is in a state of panic, hit by two forces beyond its control. The first problem is the economy (go figure). Demand for consumer products is down; retailers are focusing on price versus value. China (the

The styrofoam substitute that they grow into packaging and insulation is the next big thing in building.

Much of the world eats the same thing every day. Why are we so preoccupied with variety?

The device uses a tablet or smartphone to connect you with your pet during the day, give it treats and make sure it's not tearing up the furniture.

The rarely seen canids were found to be surprisingly widespread across the country.

This new map uses satellite technology to display the world's vegetation, and can be used for everything from weather predictions to deciding best land use practices.

A recent report by the U.S. Environmental Protection Agency concluded that 55 percent of U.S. rivers and streams are in poor condition. When we see a number like that we might not realize how many rivers there are in the US...

The software lets you virtually float down the Yampa River, which has been largely unchanged by man.

Help fund solutions to the global water crisis by purchasing a t-shirt from a company that donates to Thirst Relief for each shirt sold - enough money per shirt to give one person access to clean, drinkable water for 25 years!

One solution for purifying water in remote off-grid areas comes in the form of a wagon, complete with solar panel and water purification system.