I’m not sure if you remember, but a few years back (2007?) the city of Sydney turned off all non-essential lights for an hour to raise awareness for the need to fight climate change. That “Earth Hour” has now spread around the globe, and, well, today’s the day.
Earth Hour will take place at 8:30 to 9:30 pm your local time.
What can I do?
Again, in Earth Hour you turn off all non-essential lights and other electronics. That means you shouldn’t go around and turn off all the streetlights you can find (that would lead to mass chaos.) Instead, you should turn off: