# Peculiar Poop-Propelled Rickshaws The Tuk Tuk 'Gasifier' at the Denver Zoo is Powererd by Waste By Sarah Moore | Published 2012-03-24 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/tuk-tuk-gasifier References: [denverzoo.org](http://www.denverzoo.org/about/news_2012/2012_03_15_denver-zoo-tour-de-tuk-tuk.asp) & [huffingtonpost](http://www.huffingtonpost.com/2012/03/22/poo-powered-rickshaw-unve_n_1372881.html) It may not be the freshest smelling fuel source, but using animal waste and human garbage to power the Denver Zoo's Tuk Tuk 'Gasifier' prototype could be a major shift toward more [eco-friendly power](https://www.trendhunter.com/trends/compressed-biogas-energy). The Zoo's 'gasification' technology is patent-pending, and relies on waste to create a clean and efficient energy source. The [motorized rickshaw](https://www.trendhunter.com/trends/rosie-travel), believed to be the first one using this kind of technology, will be stopping at several zoos along its travels to the Palm Desert Association of Zoos and Aquariums. Eventually, the same technology that is used to power the motorized poo-machine will also be the primary source for a new exhibit at the zoo. The Tuk Tuk 'Gasifier' is the first in what could be a long line of inventions powered by the unpleasantly aromatic fuel source. ## Trend Insights (Trend Hunter) - Score: 2.3/10 - Popularity: 29% | Activity: 33% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) > [Transportation](https://www.trendhunter.com/transportation) ## Key Themes ### Key Themes Behind This Trend - **Waste-to-energy:** The use of waste to create a clean and efficient energy source is a trending innovation - **Green Transportation:** The implementation of eco-friendly fuel sources is a growing trend in the transportation industry - **Circular Economy:** The creation of new products or sources of energy from waste is an expanding trend in the circular economy ### Where This Applies - **Renewable Energy:** The renewable energy industry could incorporate waste-based technologies to broaden the use of eco-friendly energy sources - **Transportation:** The transportation industry could implement waste-based fuel sources to reduce their carbon footprint and operate more sustainably - **Waste Management:** The waste management industry can pivot towards a circular economy by exploring ways of repurposing waste to create energy sources for their operations ## Related on Trend Hunter - [Electric Rickshaw Pilots](https://www.trendhunter.com/trends/dhaka.md) - [Cargo-Carrying Electric Rickshaws](https://www.trendhunter.com/trends/electric-rickshaws.md) - [Multi-Seat Rickshaw Bikes](https://www.trendhunter.com/trends/volton.md) - [Cargo-Friendly Electric Quad Bikes](https://www.trendhunter.com/trends/zetmobil-lastenrad-modelle.md) - [Sustainable Arctic Tours](https://www.trendhunter.com/trends/sustainable-arctic-tours.md) - [Ruggedized Electric UTVs](https://www.trendhunter.com/trends/electric-utv.md) - [Cooking Oil-Powered Heaters](https://www.trendhunter.com/trends/bio-heater.md) - [Two-in-One Scooter Bikes](https://www.trendhunter.com/trends/popup-scooter.md) - [Refurbished EV Battery Rickshaws](https://www.trendhunter.com/trends/audi-and-nunam.md)