Just like the story of the Great Smoky Mountains, meeting the new test of environmental stewardship means finding the best ideas at the grassroots level.
Scientists at Leeds University had been hoping to test the effectiveness and environmental impact of a new type of potato that was resistant to cyst nematode worms.
However, according to Dipankar Chakraborti, head of environmental studies at Jadavpur University in Calcutta, said some of the test kits being used are nowhere near sensitive enough to give a reliable answer.