Some biofuels may contribute to greenhouse gas emissions in ways that can significantly reduce, and sometimes offset, their advantages over fossil fuels, studies have shown.
The airline industry might not be able to reduce greenhouse gas emissions for decades because most solutions are not yet viable.
The fuel pellet industry is thriving. Supporters see it as a climate-friendly source of rural jobs. For others, it’s a polluter and destroyer of nature.
Struggling energy companies are increasing the production of renewable diesel, which can reduce greenhouse gas emissions.