Required by the Montreal borough of Saint Laurent to install a green roof to offset carbon emissions, IGA, a grocery store started growing 30+ kinds of organic veggies on its roof to sell it in the produce section downstairs. The project is not only profitable but truly 'local' in nature. The idea saves the nutritional value of the produce lost in transportation, improved the water usage by utilizing the water from the store's dehumidification system...

Look at what basics you’re binning. “Chefs talk about what to do with carrot tops or whey from cheese, but that’s not where we need to make changes,” says Feast food writer Anna Jones. “It’s the milk poured down the sink and stale bread – the items we don’t put as much value on.” Jones tears up bread to freeze for instant croutons, or whizzes it into breadcrumbs for adding to croustades, pastas and salads. If oats have already been made into porridge, follow Claire Thomson, chef and author of The Art Of The Larder (Quadrille, £25), and substitute for some of the flour and water in bread dough.

We’re all yearning for solutions to heal the planet. While these projects aren’t quite ready for prime time, scientists are working hard to create better, more sustainable options.

Carlsberg and Coca-Cola back pioneering project to make ‘all-plant’ drinks bottles

Starting Thursday, Starbucks customers will have the option to save their planet - and their wallets - a dime at a time. The coffee giant is offering $1 plastic cups, which can be reused for drink purchases at a discount of ten cents.

Back in 2009, President Obama’s “Cash for Clunkers” program was supposed to be a boon for the environment and the economy. During a limited time, consumers could trade in an old gas-guzzling used car for up to $4,500 cash back towards the purchase of a fuel-efficient new car.

More than $100 billion is spent every year on bottled water globally.

Eco-friendly and green gift wrap can mean a lot of things, but for me, this means to reuse and recycle as much as possible.

Nestled among the granite peaks of eastern Hong Kong a new, man-made mountain is emerging.

Findings released by the scientists behind the study showed that annual premature deaths caused by particulate air pollution have increased six fold since 2000.

In The Wall Street Journal, Bjorn Lomborg writes that producing and charging electric cars means heavy carbon-dioxide emissions.

When we imagine the future of environmentally sustainable cities, it's common to depict them as forests of skyscrapers with, well, forests on them. But environmental writer Tim De Chant says that architects and futurists need to get real. Skyscrapers will never support trees. Here's why.

In prepping for Earth Day, we got to thinking about all the awesome ways you can repurpose materials that would normally be discarded. As we started searching for eco-chic inspiration, we came across a plethora of dresses, frocks, and gowns made from everything from plastic bags to candy wrappers. Here are 15 of our favorite “trashy” fashions.

Tesla’s making money, sales are up, and plug-in prices are coming down in a big way.

Who says mason jars are the only containers hot on the re-purposing scene? Bottles are where it’s at, especially after poppin’ bottles in the ice, like a blizzard.

The ongoing war between your desire to save money, save the earth, and save your house from dust and dirt can now end peacefully. Here are 6 all natural and all powerful cleaners that will cost you hardly anything, contain nothing toxic, and have incredible cleaning powers.

Global air pollution contributes to the premature deaths of more than 2 million adults each year, according to new research.

Guy decides to convert his "useless" lawn into a veggie garden that hosts a slew of vegetables from Carrots & Beats to Lettuce and Radishes. Although this may look great during the gardening season, I highly doubt it will look good during the "off season" months. I still have to say, his efforts are commendable.

With the heatwave sweeping the country, an urban air conditioning addiction is also on the rise. For those of us lucky enough to have it at work or at home, the generated air is an easy (if pricey) comfort that often leaves us avoiding the foreign realm of the outdoors. However, air conditioning wasn’t always there for us to fall back on so easily. Believe it or not, architecture can help us alleviate some of the heat.

A new book, "The End of Night," looks at light pollution's dangers and surprising ways to cut it back.