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Why you should host a Christmas cookie exchange

It's the fastest (and most fun) way to fill your house with a variety of delicious baked goods.




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On MNN: The year in urban design

Stories from TreeHugger's sister site about how streets are for people.




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Potomac River Named as America’s Most Endangered River of 2012

This year marks the 40th anniversary of the Clean Water Act, and while some great progress has been made, there are still many rivers which are endangered, including one flowing through our nation's capital.




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New Zealand river has the rights of personhood

Meet the Whanganui. You might call it a river, but in the eyes of the law, it has the standings of a person.




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The Colorado River named most endangered river in America [Video]

A beautiful video by photographer Pete McBride shows how this epic and ancient river is now the most endangered in the country.




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Quick-thinking obstetrician delivers a drowning baby moose to safety

"It was cool to be in the right place at the right time," says Dr. Sciascia.




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Views of the River Thames by artists, showing its changing nature

The River Thames has inspired artists throughout the ages; here's a modern take on it.




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See what environmental problem Robert Redford and Will Ferrell are fighting about

This fake fight has a good cause.




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America's top 10 most endangered rivers in 2014

If a country is a body, rivers are its arteries through which vital blood flows. We must revive our waterways before more damage is done.




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Artists and scientists collaborate to create giant river sculpture

The Nature Conservancy teamed up with two artists to create a habitat-enhancing sculpture made from natural materials.




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Why are they flooding the Grand Canyon?

The U.S. Department of the Interior has taken to releasing massive amounts of the Colorado River from dams, here's why.




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These 10 rivers likely the source of millions of tons of ocean plastic

Research reveals that rivers deliver up to 4 million metric tons of plastic debris to the sea every year, with up to 95% coming from just 10 of them.




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Man bikes on water to clean up plastics

Ladies and gentlemen, we've finally reached peak TreeHugger.




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Plastic bottles are the most common litter in European waterways

A report found that bottles have surpassed bags and straws when it comes to prevalence in freshwater rivers.




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Biggest dam removal in European history has begun with the Vezins dam

Removal of the 118-foot-high dam in France will free the Sélune River, bringing wildlife back to the waterway and the bay of Mont-Saint-Michel.




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The Honda IeMobi is a mobile autonomous living room and the future of self-driving cars

The car changed the design of our houses; the AV will change our houses and the way we live.




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European cars may soon have "Intelligent Speed Assistance." Should every car have this? (Survey)

When you try and go too fast it says, "I'm sorry, Dave. I'm afraid I can't do that."




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First pedestrian death caused by speeding autonomous car

Perhaps AVs should have their own lower speed limits until they figure this all out.




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Conservatives and pinkos unite in hating self-driving cars

Judging from what I am reading all over the political map, I suspect that autonomous cars are the new Juiceroo.




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Two transportation tragedies show how it is time to put pedestrians first

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




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Pedestrians will have to be "lawful and considerate" in a world of self-driving cars

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




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Will driverless taxis kill public transit?

In Ottawa, Canada, self-driving cars are being touted as a reason to delay transit investment.




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If hackers shut down cars in New York City, would anyone notice?

Researchers at Georgia Tech warn that there is a risk that self-driving cars might be hacked and cause gridlock.




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Eco-Rally to Transverse America

Photo from Eco-Rally USA Eco-Rally USA, a grassroots transportation group, is launching a trip across the United States aimed at helping to accelerate clean energy vehicles to become the standard for automobiles rather than the exception. The tour start




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Use the Toilet, Produce Biofuels! High-Yield Cellulosic Ethanol From Sewage System Debuted

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




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Willie Smits on Regrowing the Indonesian Rainforest and Harvesting Biofuels

Image: Casajuntoalrio Willie Smits long ago abandoned the customary role of the microbiologist. After working in the Indonesian rainforest for three decades (and marrying a tribal queen), he has taken it upon himself to regrow the delicate ecosystems




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Corn Ethanol Back in the Game Under New EPA Renewable Fuel Standard Rules

New Environmental Protection Agency requirements for its Renewable Fuel Standards program have been released which raise an issue which has sat dormant for a little while: How to calculate the greenhouse gas emissions of a




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Cars and People Compete for Grain

At a time when excessive pressures on the earth's land and water resources are of growing concern, there is a massive new demand emerging for cropland to produce fuel for cars--one that threatens world food




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The Best Green Cars and Technology From Michelin's 2010 Challenge Bibendum Show

French tire giant Michelin recently held its 10th Challenge Bibendum, this time in Rio de Janeiro, Brazil. The event is a chance for Michelin to rally industry players around the flag of sustainable mobility and the future of the automobile. Here's me loo




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The Best Green Cars and Technology From Michelin's 2010 Challenge Bibendum Show (Slideshow)

This year, French tire giant Michelin (yes, the Michelin that made the tires on your car) held its 10th Challenge Bibendum event, this time in Rio de Janeiro. If you've never heard of this thing, don't kick yourself,




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Ditching Ethanol Subsidy Will Save US $6 Billion - Won't Hurt Domestic Production Either

Two new pieces in NRDC's Switchboard blog remind us that the debate over corn ethanol subsidies is alive and well; and illustrate, through two new reports, the benefits of ditching Federal support altogether. The first, from the




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Corn Ethanol, Biofuel's Eldest Poster Child, Is Off To Environmental Reform School

This week USEPA announced that the maximum ethanol content of motor fuel sold in the USA would be allowed to rise from 10% to 15%. Positives of the Agency's decision are: reduced dependence on foreign




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How to Improve Food Security by Reducing Grain Demand

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.




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Al Gore: I Was Wrong About Ethanol

Photo: World Economic Forum, Flickr, CC BY-SA Corn ethanol has turned out to be a bad idea -- there's little disagreement about that, especially in environmental circles. For starters, it's an inefficient fuel source, consuming tons of water to produce




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Why Are Germans Boycotting E10, the Ethanol Fuel?

Germans rate respect for having a national identity as eco-conscious people. Should it therefore come as a surprise that Germans are not embracing the advent of E10, a 10% ethanol-gasoline mixture, which has




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The Koch Brothers Are Right: Ethanol Subsidies Should Go

Few industrialists in recent times have done more to imperil environmental protections and public health than the Koch brothers. The force behind Americans for Prosperity and Koch Industries have galvanized




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Senate Votes to End Billions in Ethanol Subsidies

A measure that would remove roughly $6 billion in annual ethanol subsidies just passed the U.S. Senate, signaling, among other things, a shift in public attitude towards the once-heralded alternative fuel. It




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First Iowa Cellulosic Ethanol Plant Gets $105m Loan Guarantee From DoE

If it seems like you've read a variation of the above headline before you're not wrong, and as much as anything it's a sign of the rock road cellulosic ethanol and biofuels in general have had in the past few years. The details: The Department of




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What Our Sugar & Ethanol Habits Are Doing to Central American Workers

Kidney failure is killing sugarcane workers in Central America who supply sugar for both our sweet tooth and demand for ethanol.




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Full Planet, Empty Plates: Chapter 4. Food or Fuel?

The massive diversion of grain to fuel cars has helped drive up food prices, leaving low-income consumers everywhere to suffer some of the most severe food price inflation in history.




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Why you get worse gas mileage in winter and what to do about it

There's no mystery why gas mileage is not as good in the winter, but there are some things you can do to make it better.




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Trump loosens restrictions on ethanol, increases smog

There is an election coming up and the farm vote matters.




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New York City council bans processed meats from public schools

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




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Children need an hour of nature time each day, says Wildlife Trusts

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




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San Jose’s "Green Vision" Initiative Means Low-Impact Sleep, Eat and Play is Easy in Silicon Valley

Here's a one-stop green guide to traveling in San Jose, from hotels to a night on the town.




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Sensordrone Turns Your Phone Into an Environmental Sensor for Gases, Temperatures, More

Sensors on cell phones is a concept that has gone mainstream enough that this Kickstarter project has blown its funding goals out of the water. The device turns your cell phone into a "Swiss Army Knife of environmental sensors."




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Prix Pictet International Environmental Photography Competition Short List Announced 2012

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




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Drones will deliver textbooks to Australian students

The unmanned flying devices cut out expensive and polluting shipping methods for the heavy books.




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Why going to the library is one of the best things I do for my kids and the planet

It's so much more than books.




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Do you eat for health or environmental sustainability? The Double Pyramid says you can do both

The Double Pyramid is an innovative way of portraying how the ecological footprints of our food compare to their nutritional value.