The unique solution invites smokers to cast their vote on a changeable topic by inserting their cigarette butt into one of two chambers.
Thanks to the use of sensors, image recognition technology and AI - it makes sure we spend less time sifting through and sorting trash for recycling.
Called CanBank, it allows people to recycle plastic bottles and cans in exchange for rewards -- such as phone credit and promo codes.
Whereas regular recycling of plastic is expensive, the company called Shisalanga Construction is using recycled plastic milk bottles to repave roads in South Africa.
CopenHill, also known as Amager Bakke or Amager Slope, is a ski slope and a combined heat and power waste-to-energy plant in Amager, Copenhagen.
The amount of recycled plastics used in the mixture to pave the lot at one store in Canada is equivalent to more than six million plastic checkout bags.
A power station northwest of the Swedish capital is to become fossil fuel-free by 2020 with a little help from moldy H&M clothes.
It's like a big aqua Roomba that cleans up waste and pollution while logging real-time water quality data.