Car owners in Delhi may be able to save up to 50 per cent travel cost by sharing rides under a citywide carpool scheme proposed by the Delhi transport department aimed at decongesting the city. People who register with the Pan City Mega Carpool (pcmc) scheme can get in touch with other car owners taking the same route as them.

The first complete map of the lakes beneath Antarctica suggests the icy continent's secret water network is more active than we thought.

While news reports and disaster movies remind us about tipping points for Arctic melt and sea level rise, some things closer to home get less attention. Take food supply: new modelling studies show that there are climate tipping points here too, beyond which crop yields will collapse.

Timely and accurate information about various habitats of a wetland ecosystem is necessary for the assessment, monitoring and management of a wetland. In this article, the state-of-the-art Polarimetric Synthetic Aperture Radar (PolSAR) data have been analysed to characterize various components of a wetland ecosystem.