And switching these major manufacturers to cleaner sources of energy, like wind and solar, would help significantly. Batteries are one option, but some scientists think an ancient technology, firebricks, is a cheaper and easier solution. Advertisement"It's a way to heat firebricks to a blazingly hot temperature," he said. Rondo said its system reduces CO2 emissions and lowers the cost of energy because it requires less electricity than hydrogen fuel. AdvertisementForsberg said one of the biggest benefits of the newer firebrick technology is that it updates processes many industries have in place.

---

Persons: They're, they've, Charles Forsberg, Forsberg, there's, Mark Jacobson, Jacobson, Joey Kabel, Dan Stack, It's, Rondo Organizations: Service, Business, Solutions, Boston Globe, MIT, Stanford University Locations: Kentucky, California