وأظهرت الانبعاثات الهاربة اتجاهاً واضحاً نحو الانخفاض وكانت في عام 2000 أقل بنسبة 30 في المائة تقريباً مما كانت عليه في عام 1990.
This observation could be at least in part explained by the effects of climate policies, although some slowdown in economic growth at the end of the decade and milder winters could also have contributed to this The Netherlands, for example noted that more than half of the energy efficiency improvement throughout the last decade could be attributed to energy conservation.