The objective of this summary report is to give an overview of the main technical activities undertaken by all the partners of the CASCA project during the third year (November 2003 - October 2004). One technical meeting was held in May at the headquarters of CA TIE, Tunialba, Costa Rica on progress towards biophysical modeling. One consortium meeting was held (November 22- 26 of 2004) in Guatemala at the headquarters of ANACAFE to assess the data collection performed during the third year of CASCA and to plan activities for the fourth and final year. This meeting was attended by a total of 18 persons representing all partner institutions and with researchers from all the work-packages. 22 presentations were done during these four days.