We reprise some of our favorite July 4th posts:
Obligatory Post About Green Fireworks for the 4th of July
Fireworks are fun - who doesn't like explosions? - and a good excuse to get together with family and friends, but they're also not very clean. In Beijing, China, the smoke from fireworks during the new year celebrations tripled pollution levels overnight, and the toxic metals used to get the bright colorful sparks fall back to Earth, contaminating soil and water. Is there something we can do without losing the fireworks?