Sydney, Oct 22 : Rising sea levels as a result of global warming threatens inundating 21 major cities, including Mumbai and Karachi, a new report by the WorldWatch institute has revealed.

Washington, Oct 21 : British archaeologists have discovered what they believe is an ancient Saxon burial site in a school at Twyford in Berkshire county in Southern England.

London, Oct 21 : British researchers from the University of East Anglia have found in a new study that the amount of carbon dioxide being absorbed by the world’s oceans has halved in the last decade.

The researchers gauged CO2 absorption through more than 90,000 measurements from merchant ships equipped with automatic instruments.

The result of their 10-year study in the North Atlantic showed that CO2 uptake had halved between the mid-90s and 2000 to 2005.

The findings assume significance as the ocean’s ability to soak up less of the greenhouse could worsen the global warming scenario.

London, Oct 21 : Global emissions of carbon dioxide from shipping are twice that of aviation, a report by Intertanko, which represents the majority of the world's tanker operators, has said.