Every day, before the first rays of dawn stretch across the horizon, 54-year-old Sidharthan sets off on a quiet voyage across Vembanad Lake. From a narrow river mouth in Vechoor, a serene village ...

A study of clam shells suggests Atlantic Ocean currents may be approaching a “tipping point”. Scientists studied records of quahog clams (which can live for over 500 years) and dog cockles – because ...