Tiger skins and tiger bones are extremely profitable for everyone involved in poaching, whether through killing or selling.

Though Vedic maths evokes Hindutva connotations, the fact is that it's a system of simple arithmetic, which can be used for intricate calculations.

Extant texts of the Vedas do not contain mathematical formulae, but they have been found in later associated works.

Vedic formulae enable quick calculations, but only if the methods used are understood well.

Forget the hassles of proving to what the square of a hypotenuse is equal. A Vedic formula offers a simple solution.

Ancient Indian mathematics did not include algebra, but the mathematicians could still provide answers to questions that have become modern theorems.

Sweden is successfully moving towards self-sustaining cities where long-term ecological gains rank higher than short-term economics.

Among steps undertaken by the municipally owned Stockholm Water were renovation of the waste water network, construction of a storm sewer overflow basin and measures to reduce the load on pipes and treatment plants.

In 1987, citizens of Gothenburg accepted the challenge of cleaning up their city and succeeded admirably.

Job creation, to stop migration of its residents to bigger cities, was the aim of Overtornea's action plan.