Nonrenewable energy use

In summary, the LCA studies show that, assuming current technological and energy use practices, PLA exhibits comparable nonrenewable energy use and greenhouse gas emissions to PE and PET [27, 38]. The life cycle environmental impacts of petro-polymers are often taken from the European Association of Plastics Manufacturers (APME). The APME has an extensive database of LCl data for numerous polymers, including PE, PET, PP, and PS. 

Life Cycle Stage Cradle-to-gate Nonrenewable Energy Use fMJ/kgJ Climate Change Potential [kg CO2 eq./kg] NOx Emissions fkgNOx/kg]... 

TRACI Tool for the Reduction and Assessment of Chemical and Environmental Impacts NREU nonrenewable energy use... 

Before global warming the geothermal heat flow was the only net heat source on Earth. Since then heat dissipation from the global use of nonrenewable energy has resulted in an additional net heat source. 

Metals, which are also nonrenewable and use energy-intensive production processes, are best reserved for special applications for example, around balconies and roof gardens where their strength and lightness is essential. Decorative ironwork may also be required to preserve the architectural style of a building it can often be found in salvage yards. 

GHG emissions, increased rate of energy use, and consumption of nonrenewable resources intensify the negative processes in the environment (Stevens and Verne, 2004 Manwell et al., 2002). 

The suburban home with its car, lawn and undetached house uses nonrenewable fossil fuels. In the 25 years following World War II, American homes consumed increasing amounts of energy. In the 1960s, energy use per house rose by 30%. 

Thailand, 312 to 826 in Malaysia, and 670 to 2,165 in Singapore. In urban areas high energy use contributes to local air pollution. Cars consume about five times more energy and produce six times more pollutants than buses. Another environmental impact of this development besides the related air pollution is the depletion of nonrenewable natural resources. Like the air pollution problem, the depletion of nonrenewable sources of energy also has global implications. 

Out of necessity, modern societies are finally beginning to rethink the issue of energy use. No scientific challenge today is greater than reversing the climatic effects of our increasing dependence on the combustion of fossil fuels—coal, petroleum, and natural gas. Because these fuels form so much more slowly than we consume them, they are nonrenewable. In contrast, wood and other fuels derived from plant and animal matter are renewable. 

---