You can recycle used engine oil at most auto parts stores, as well as at some dealerships or through your local area's ...

A replacement for energy-intensive heat distillation could be at hand. Membranes separate or filter out molecules from mixtures according to differences such as size and shape. If molecules are nearly ...

HOUSTON (Reuters) - Guyana is considering a plan to export crude oil to the United States for refining and to bring back fuel for domestic supply and possibly for sale to nearby countries, Guyanese ...