TY - BOOK AU - Creasey, Roger J. TI - Cumulative effects and the wellsite approval process : resources and the environment program. U1 - RM PY - 1998/// CY - Albert PB - The university of Calgary KW - MEDIO AMBIENTE KW - EVALUACION AMBIENTAL KW - INDUSTRIA DEL PETROLEO KW - CANADA KW - CAN N1 - 03550 N2 - Cummulative environmental impacts can result from the creation of a multitude of individually insignificant yet cumulatively important effects. Despite the requirement for cumulative effects assessment in Alberta's environmental assessment legislation, and the requirement to make energy development decision based partly on the effects of the decision on the environment ER -