environmental
60
around
background
bulb
cable
campaign
care
concept
connect
conservation
day
design
earth
eco
ecology
electricity
element
energy
environment
global
globe
graphic
green
hour
idea
illustration
international
lamp
light
minute
modern
natural
nature
off
planet
power
protect
protection
save
shutdown
sign
simple
switch
symbol
turn
turnoff
vector
wire
world