are scattered across the book in the form of proportional bubbles (in kilograms of CO2 equivalent).

Average emissions, thousand million tonnes of CO2 equivalent per year in various agriculture generated emission gases.

The area of the squares is proportionate to the annual reduction in emissions in million tonnes of CO2 equivalent. Displaying main areas of housing investment, daily life and private car investment.

Applications: Electricity production, Industrial process, Heating or cooling buildings, Warmer water and Transport.

For developing countries (i.e. non-Annex I countries), data is either old or missing. To better reflect the truth, data from 2000 is chosen to overlap from IEA (dashed circles).

In green: virtuous initial equation in favour of biofuels, In red: main concerns related to biofuels, In blue: main concerns related to fossil fuels.

The plants grown for biofuel production absorb CO2 from the atmosphere and combustion of the biofuel releases only the CO2 previously absorbed by the plant.

The national greenhouse gas intensity measures the quantity of GHG emissions in relation to the economic output of a country and is independent of the absolute quantity of GHG emitted.

In Copenhagen 36 per cent of the city's inhabitants cycle to work, using a network of more than 330 kilometres of cycle tracks and travelling at an average speed of 15 kph.

Share of transport-related greenhouse gas emissions generated by rail, sea, air and road.

Emissions of various gases from deforestation, logging, peat fires, fossil fuel and other sources.

WWF Ranking of the 30 dirtiest power plants in Europe and (in)efficiency of power plants located in the European Union and serving the public power supply.

From fossil-fuel burning, cement production and gas flaring. Country size is proportionate to national carbon dioxide emissions in 2004.

Number of air transport passengers per year in millions depicted as USA relative other countries.

Most commonly used air routes, in million passengers a year. Displayed as flights most easily replace by train and flights possibly replaceable by train and ship.

'(the shipping industry) now carries more than 90% of the world's trade by volume, and has tripled its tonnage since 1970'

In this example, CO2 emitted each day by two persons living in Munich are detailed, showing two different ways of fulfilling the same needs: 38 kg of CO2 emitted by an average consumer versus 14 kg by a more aware one.

Energy cost of building material range from 1 to 2800. Energy consumed measured in kilowatt hour per cubic metre for stone, sawn timber, concrete, brick, cement, PVC, steel and aluminum.

Oil required for production. Displayed as annual consumption levels of litres per kilogram of vegetable.

Energy consumption for heating and hot water, CO2 emissions depending on the energy used for heating and hot water, for a 100 square metre dwelling.