Radiation, chemical and biological forces tackle two million tonnes of toxic chemical waste with huge mercury stockpile and oil poisons.

Satellites show giant hole ringed by 20 'baby craters'.

TNK-BP, a Russian-British company, is under fire concerning 784 environmental accidents reported in 2011, compared with 20 by rival Lukoil.

Thousands of carp washed up, but who or what killed them?

Mysterious 'gigantic' hole in remote region spotted by helicopters over gas-rich Yamal peninsula.

Huge damage wrought by forest fires is sparked by failure to apply safety laws, complained Yuri Chaika.

Most fires will not be extinguished, with major cities polluted by fumes.

More than a dozen animals killed by self-appointed executioner and dumped by a river near lakeside town.

New discovery of rare crystal Rosenbergite at 'burning ice' site where earth is hot despite temperatures of minus 35C.

Historic cities of Krasnoyarsk and Irkutsk ideal to connect country to buoyant Asian markets.