Did you take part in the fourth annual Earth Hour on March 27, 2010? People around the globe turned off their lights, computers, TVs, and other energy consuming devices for one hour from 8:30 – 9:30 p.m. local time to show their commitment to saving energy.

Last year our blogger Ayat participated in Earth Hour from Jordan. Read her post!

Learn more about Earth Hour 2010 on National Geographic News.

If you didn’t participate this year, will you try this next year?