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There are a lot of empty Coke bottles that are disregarded around the world every day. But, as the video below shows, the soda maker may have figured out a way to encourage people to hang on to their used plastic bottles instead of just throwing them away. The company has created 16 custom caps that turn old bottles into everything from squirt guns and spray bottles to sauce dispensers and saltshakers. Coke is sending tens of thousands of the caps to several Asian countries later this year ... Discuss

For nearly two years, the Sandwich Me restaurant in Chicago has produced zero waste. The slightly more than eight pounds of trash it did create during that time was given to an artist, who turned it into a sculpture. In this short video from NationSwell, owner Justin Vrany explains his passion for food and community, as well as, his unwavering dedication to sustainability ... Discuss

Activist and motorcycle enthusiast Anton Berteaux is passionate about helping park rangers at Mongolia’s Lake Hovsgol prevent poachers, illegal mining operators and polluters from destroying the natural wonder. Not only is the fresh water lake home to a variety of unique wildlife, but as Berteaux points out, local indigenous people depend on the lake for their own water needs. His idea is to provide the outmatched rangers—who currently patrol the massive area on horseback—with motorcycles. As unique as his campaign is, his promo video is a work of art. If Wes Anderson were to direct a 2-minute video about supplying motorcycles to park rangers in Mongolia to chase off miners, it would likely look just like this. Evidently, it’s been pretty effective. With almost a week to go, he’s already surpassed his fundraising goal ... Discuss

The documentary Gasland looked at the potential dangers that fracking can do to groundwater supplies, but now, new research shows that using chemicals to drill for natural gas poses a new danger: Causing earthquakes. According to the research, the natural gas drilling method known as “fracking” can trigger earthquakes at drilling sites. The study, which has been published in the journal Science, found that clusters of minor earthquakes that have happened near drilling sites were triggered by large, far-off earthquakes, because of the injecting fluid used in the fracking process. So even if the water coming out of your faucet isn’t catching on fire, you may still have to be concerned about an earthquake thousands of miles away causing a seismic event in your own backyard … Discuss

A skyscraper made out of wood sounds like a pretty radical idea, but if the plans for this 34-story building are chosen as part of a design competition, it could become a reality by 2023. The designs are from a Scandinavian architecture firm for a massive new apartment complex in Stockholm, Sweden, and its designers say that wooden skyscrapers could offer a much more eco-friendly option than concrete and steel. According to the firm, traditional construction accounts for 30-40 percent of all CO2 emissions, but a wooden building would decrease emissions and produce far less waste … Discuss

Inspired by the growing “micro-home” movement, Christopher and Malissa Tack constructed this 140-square-foot house on top of a flatbed trailer almost entirely from natural wood. With no construction experience, the couple says they used resources they found online to build an eco-friendly, easily portable home for about $20,000. You can check out this gallery to see up-close pictures of the surprisingly roomy interior … Discuss