Energy and environmental impacts

So far I have not referred to the environmental impacts of energy production and its use.
This and some following posts will be dedicated to energy and environment.
The most notorious environmental impact of energy production is greenhouse gas emissions.
According to EEA Energy and Environment Report 2008 energy related greenhouse gas emissions account for about 80% of total emissions. By sectors electricity and heat production have the highest share, followed by transport.
Total greenhouse gas emissions by sector, EU 27
Note that this includes carbon dioxide, methane, nitrous oxide, SF6, HFC e PFC.
The figure below shows the CO2 emissions per capita in 2005.
CO2 emissions per capita by country in 2005
Energy related emissions have the highest share per country. Luxembourg emits more than 25 t CO2 per capita. Portugal emits about 10 t CO2 per capita.