Contents Contents............................................................................................................................................................................................................... 3 Executive Summary ........................................................................................................................................................................................ 5 1
2
Introduction ............................................................................................................................................................................................ 6 1.1
What is the Ecological Footprint?....................................................................................................................................... 6
1.2
Purpose and Scope .................................................................................................................................................................... 6
Method ...................................................................................................................................................................................................... 7 2.1 2.1.1
Bottom-up overview ...................................................................................................................................................... 7
2.1.2
Area types.........................................................................................................................................................................10
2.2
3
Top-down methodology .......................................................................................................................................................13
2.2.1
Resource input and production ..............................................................................................................................14
2.2.2
Consumption Land Use Matrix (CLUM) ..............................................................................................................14
2.2.3
Scaling the national CLUM to California .............................................................................................................15
Results .....................................................................................................................................................................................................17 3.1 3.1.1
California’s Ecological Footprint and biocapacity .....................................................................................................17 California compared to the United States ..........................................................................................................18
3.2
California CLUM........................................................................................................................................................................20
3.3
Comparing the bottom-up and top-down methodologies .....................................................................................22
3.3.1 4
Bottom-up methodology ........................................................................................................................................................ 7
Conclusion ........................................................................................................................................................................24
Recommendations and future analysis ....................................................................................................................................25 4.1
Economic productivity and biocapacity ........................................................................................................................25
4.2
Sector-level analysis ...............................................................................................................................................................25
4.3
Replication with other states .............................................................................................................................................25
4.4
Economic implications ..........................................................................................................................................................26
Appendix A: Comparison of California and standard NFA data sources ..............................................................................27 Appendix B: Equations used in bottom-up methodology ...........................................................................................................29 Appendix C: Guidance for SFA workbook...........................................................................................................................................37
Methodology for Calculating the Ecological Footprint of California ÂŚ March 2013
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