burning
cable
carbon
carbon dioxide
chimney
climate
connection
current
dioxide
dirty
ecology
electric
emission
energy
engineering
environment
evaporation
exhaust
factory
fume
gas
globalwarming
greenhouse
grid
high
industry
infrastructure
network
pillar
pole
pollution
power line
power station
powerlines
pylon
sky
smog
smoke
steam
supply
technology
tower
transmission
transmit
vapor
volt
voltage
watt
wire
workshop