• Life cycle (0:29) https://youtu.be/x9NqzVWIeX4
  
• The Life Cycle of a T-Shirt (4:07) https://youtu.be/5Ckgw5xvZV4

• Videos:
  
• - The principles of Life Cycle Assessment (LCA) (2:55) https://youtu.be/r0ucT1KRiO4
  
• - Life Cycle Assessment as part of Strategic Sustainability for Product (3:03) http://www.youtube.com/watch?v=fGhoInz-VUs
  
• Life cycle assessment - Wikipedia http://en.wikipedia.org/wiki/Life_cycle_assessment
  
• Defining Life cycle Assessment https://www.gdrc.org/uem/lca/lca-define.html
  
• What is the Life Cycle Assessment (LCA) Methodology? https://www.thinkstep.com/life-cycle-assessment-lca-methodology

• ATHENA Impact Estimator and EcoCalculator (Canada) http://www.athenaSMI.ca
  
• BEES (Building for Environmental and Economic Sustainability) Online version (USA) https://www.nist.gov/services-resources/software/bees
  
• GaBi (Germany) http://www.gabi-software.com
  
• SimaPro (The Netherlands) http://www.pre.nl/simapro.html
• Examples of LCA:
• Exercise on Life Cycle Assessment dataset creation (UNEP): Case study: Cotton T-Shirt [PDF]
• Life Cycle Assessment: A Key to Driving Sustainability (Life Cycle Thinking Exercise) [PDF]
• Life cycle assessment example of hand dryer options https://www.pre-sustainability.com/news/life-cycle-assessment-example-of-hand-dryer-options
  

References:

• AIA, 2010. AIA Guide to Building Life Cycle Assessment in Practice, American Institute of Architects (AIA), Washington, DC. https://www.brikbase.org/sites/default/files/aiab082942.pdf
  
• ISO 14040:2006 Environmental Management – Life Cycle Assessment –Principles and Framework http://www.pqm-online.com/assets/files/lib/std/iso_14040-2006.pdf
  
• ISO 14044:2006 Environmental Management – Life Cycle Assessment – Requirements and Guidelines [British standards online][PDF]