Only a portion of the tobacco inside a cigarette comes from the leaf of a tobacco plant. A significant amount ... pulp of mashed tobacco stems and other parts of the tobacco leaf that would ...

Tobacco kills 8 million people worldwide every year, but imagine if it could be used to make medicine. The idea isn’t unheard ...

plants transform it into useful compounds through a series of chemical reactions that happen in multiple parts of the cell and reduce the photosynthetic efficiency by up to 50 percent. To recover ...