Sustainable biofuels have had faster RD and performance breakthroughs, but there are more challenges, because most exciting biofuels are still in early-commercial stage of development.
Sustainable biofuels-ல வேகமான RD and performance breakthroughs நடந்திருக்கு, ஆனா இன்னும் challenges இருக்கு, ஏன்னா most exciting biofuels எல்லாம் இன்னும் early-commercial stage of development-ல தான் இருக்கு.