Which industries and activities emit the most carbon?

[Aurora]

'Carbon' is shorthand for greenhouse gas emissions, including CO2, methane, nitrous oxide and F-gases. These gases are released by many different types of activity – not just the burning of fossil fuels, but also farming, deforestation and some industrial processes.

See: http://www.guardian.co.uk/environment/2 ... -emissions

[JohnB]

Fuel and power for residential buildings (10.2%)
Fuel and power for commercial buildings (6.3%)
.......
Cement production (5.0%)

That's a pretty good argument for the importance of highly insulated passive solar buildings using natural materials.