Rosewood and sandalwood have two of the most popular scented essential oils. Some botanists have advocated not purchasing rosewood products because the tree is being decimated along the river corridors where it is harvested in Brazil. Others argue that the tree is not rare farther back in the forest. Sandalwood faces similar problems. Sandalwood is of concern because it takes so long to grow, and there was a big fire in 1997 in the sandalwood forests in India. Some companies claim to be using rosewood and sandlewood sustainably-grown and ethically-harvested.