Let's say you have a lunch date to make – and it's on the other side of the planet. Wouldn't it be way more convenient to pop down a hole and take a 42-minute journey through Earth's innards?
WHAT'S INSIDE: ENVIRONMENTAL SCIENCE
Eco-conscious people purchase carbon offsets to help reduce worldwide greenhouse gas emissions. But do offsets actually help, and what does Pink Floyd have to do with them?
When you get that gas or electric bill at the end of the month, you may swear off long, hot showers. But if your resolution always seems to cool after a few days, you might be a good candidate for a solar water heater.