Energy Pyramid Diagram

"Consumption of energy resources, (e.g. turning on a light) requires resources and has an effect on the environment. Many electric power plants burn coal, oil or natural gas in order to generate electricity for energy needs. While burning these fossil fuels produces a readily available and instantaneous supply of electricity, it also generates air pollutants including carbon dioxide (CO2), sulfur dioxide and trioxide (SOx) and nitrogen oxides (NOx). Carbon dioxide is an important greenhouse gas which is thought to be responsible for some fraction of the rapid increase in global warming seen especially in the temperature records in the 20th century, as compared with tens of thousands of years worth of temperature records which can be read from ice cores taken in Arctic regions. Burning fossil fuels for electricity generation also releases trace metals such as beryllium, cadmium, chromium, copper, manganese, mercury, nickel, and silver into the environment, which also act as pollutants.
The large-scale use of renewable energy technologies would "greatly mitigate or eliminate a wide range of environmental and human health impacts of energy use". Renewable energy technologies include biofuels, solar heating and cooling, hydroelectric power, solar power, and wind power. Energy conservation and the efficient use of energy would also help." [Energy industry. Environmental impact. Wikipedia]
The Energy resources diagram example was created in the ConceptDraw PRO diagramming and vector drawing software using the Manufacturing and Maintenance solution from the Illustration area of ConceptDraw Solution Park.

This bubble diagram sample was designed on the base of the Wikimedia Commons file: Bubble diagram showing the share of global cumulative energy-related carbon dioxide emissions for major emitters between 1890-2007.svg.
"Major emitters are shown (percentage share in brackets): the United States (28%), the European Union (23%), Russia (11%), China (9%), other OECD countries (5%), Japan (4%), India (3%), and the rest of the world (18%). Data are from IEA (2009). ... The area and colouring of the circles is proportional to the share of emissions." [commons.wikimedia.org/ wiki/ File:Bubble_ diagram_ showing_ the_ share_ of_ global_ cumulative_ energy-related_ carbon_ dioxide_ emissions_ for_ major_ emitters_ between_ 1890-2007.svg]
The bubble diagram example "Global cumulative energy-related CO2 emissions" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Bubble Diagrams solution from the area "What is a Diagram" of ConceptDraw Solution Park.