但是科学家对生物燃料的可持续性越来越多地提出了质疑，并警告说，不停地毁林制造生物能源就可能导致全球变暖。

But scientists have increasingly questioned the sustainability of biofuels, warning that by increasing deforestation the energy source may be contributing to global warming.

youdao

但是科学家对生物燃料的可持续性越来越多地提出了质疑，并警告说，不停地毁林制造生物能源就可能导致全球变暖。

But scientists have increasingly questioned the sustainability of biofuels, warning that by increasing deforestation the energy source may be contributing to global warming.

youdao