A Stanford earth science student examines the environmental implications of paper and plastic grocery bags. In the battle to be eco-friendly, the results are complicated.
Electric cars require heavy duty batteries that will need to be replaced in a car’s lifespan, but with battery recycling programs, electric vehicles are still a greener choice than gas-fueled ones.
Many people already dislike music played in malls, but when you consider the energy required to power that music, the picture gets worse. Stanford’s eco-advice writers dig deeper into the math of mall music.
Real Christmas trees leave a smaller carbon footprint than artificial ones, especially if replanted after the holidays. Artificial trees, however, can be eco friendly if they’re used for more than 20 years.