News roundup: Taj Mahal turns yellow, kangaroos feal the heat and more
Pollution is 'turning the Taj Mahal yellow' despite India's attempts to curb air contamination [Reuters]
Kangaroo cull planned in Australia as 'over-grazing' animals bear the brunt of drought [ENN]
Newly-discovered hummingbird is 'already under threat' [New Scientist]
'Worlds worst polluters' targeted in new carbon trading scheme proposed by Britain and Germany [Guardian]















