The response from Mr Singh should be a push to explain to Congress and the country how reforms to land ownership or government efficiency or the retail sector would help to improve the mood and hence India's economic fortunes.

ECONOMIST: India��s political paralysis

Growth in the world economy, increased fossil fuel emissions since 2000 and a decline in the efficiency of the ocean and land 'sinks' to absorb carbon emissions.

CNN: Topical waters

A380 can take off and land on the same runways as the big Boeing, thanks to the efficiency of its wings.

ECONOMIST: The Airbus A380

The book is a tour de force, showing, for example, how the potential contribution of biofuels can be approximated from just three numbers: the intensity of sunlight, the efficiency with which plants turn that sunlight into stored energy and the available land area in Britain.

ECONOMIST: What to do?

What it is, is that because we don't use the latest technologies, a lot of times the holding patterns for planes, how many planes can land safely at the same time, all those things are -- reduce the efficiency of -- the overall system is reduced because we're not using the best technologies available.

WHITEHOUSE: Help for Homeowners in the Hardest Hit States