Carbon is such a natural part of so many human activities that many different areas of policy making and decisions are now having to consider it. Planning, energy and economic policies are all being re-examined in many countries to reduce carbon emissions. - Description added by: David Lockie

Transport is responsible for a large proportion of carbon emissions. As high carbon fossil fuels are largely used to power all types of transport - from road to rail, marine to aviation - carbon dioxide and other greenhouse gases are released into the atmosphere, contributing to climate change. Using public transport and technologies to improve energy efficiency, hybrid vehicles, electric vehicles, bio fuels and fuel cell vehicles are all vital components in helping to reduce our carbon emissions from transport. - Description added by: David Lockie