Everyone has heard about the plastic waste ruining our planet by now. But who knows about the 13.1 million tons of textile waste (worth roughly USD 350 billion) the United States alone produce every year? And who knows that 11 million of that textile waste goes almost directly to landfills? What’s more, it takes about 700 gallons of water (that’s 2650 liters) to make one T-shirt.
Wind turbines are a wonderful invention, producing clean energy from an abundant natural resource: the wind. Since the oil crisis in the 1970s, we’ve continuously developed new and more efficient wind turbines. Key to an efficient wind turbine is a steady flow of… you guessed it, wind. The higher in the sky, the stronger and more constant the wind. This poses a challenge as it requires us to build quite tall wind turbines to reach this “sweet spot”.
“Terra preta” or “black soil” is very fertile, dark and manmade soil found in the Amazon. It’s the result of an indigenous farmers’ practice 3000 years ago, they would bury charcoal in the ground to boost the otherwise relatively infertile Amazonian soil. The charcoal allows the soil to capture and retain nutrients better, leading to higher crop yields. Back then the farmers didn’t know their practices would have a lasting impact on the land. Yet today, the terra preta sites are worth five times more than sites with regular soil.