This is a reputable organization called "Environment California". But their aggressive automated phone campaigns are not winning them any friends. I assume you can call them and ask them to remove you from their calling list (I haven't tried yet). But you can also leave them a message on their contact-us form at http://www.environmentcalifornia.org and let them know you disagree with their methods.
this number has called 3x in the past 5 days between 8-9pm. No message is left. Another service list this as a land line and this area code is the downtown LA area. Most likely a miss-dialed number.