Silver fueled the rise of the Roman Empire. But the ancient process of mining and extracting silver was also making the air thick with lead, scientists found.
Despite progress in reducing air pollution in Indian cities from 2019 to 2024, northern regions like Delhi-NCR, Haryana, Rajasthan, Punjab, and Uttar Pradesh still face high pollution levels.
The fuel is generated from 100% renewable waste and residue raw materials, like used cooking oil and animal fat waste.