求分析这句英语长句

求分析这句英语长句
Sustainable production of renewable energy is being hotly debated globally since it is increasingly understood that first generation biofuels,primarily produced from food crops and mostly oil seeds are limited in their ability to achieve targets for biofuel production,climate change mitigation and economic growth.
只需要告诉我最后一小段“ climate change mitigation and economic growth”是什么成分,