求分析这句英语长句Sustainableproductionofrenewableenergyisbeinghotlydebatedgloballysinceitisincreasinglyunderstoodthatfirstgenerationbiofuels,primarilyproducedfromfoodcropsandmostlyoilseedsarelimitedintheirabil

　　求分析这句英语长句

　　Sustainableproductionofrenewableenergyisbeinghotlydebatedgloballysinceitisincreasinglyunderstoodthatfirstgenerationbiofuels,primarilyproducedfromfoodcropsandmostlyoilseedsarelimitedintheirabilitytoachievetargetsforbiofuelproduction,climatechangemitigationandeconomicgrowth.

　　只需要告诉我最后一小段“climatechangemitigationandeconomicgrowth”是什么成分,