**7. Comparison of the environmental performance of a solar airconditioning system vs a conventional electrical system, using LCA**

Nowadays, the topic of global warming has become a top trending around the world. Life cycle assessment (LCA) was created in 1960. It is a tool to evaluate the environmental impacts and is an instrument to help take decisions, ecodesign, and comparative of alternatives. This section shows a comparasion of environmental performance of air-conditioning absorption system with conventional air-conditioning system by LCA according to international laws ISO 14040 and ISO 14044.
